Страница 44, часть 2 - гдз по физике 7 класс учебник часть 1, 2 Генденштейн, Булатова

Авторы: Генденштейн Л. Э., Булатова А. А., Корнильев И. Н., Кошкина А. В.

Тип: Учебник

Издательство: Просвещение

Год издания: 2019 - 2026

Уровень обучения: базовый

Часть: 2

Цвет обложки: бирюзовый

ISBN: 978-5-09-107477-2

Часть 2. Cтраница 44

App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php
  #connection: "mysql"
  #table: "book_pages"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #with: []
  #withCount: []
  +preventsLazyLoading: false
  #perPage: 15
  +exists: true
  +wasRecentlyCreated: false
  #escapeWhenCastingToString: false
  #attributes: array:21 [
    "id" => 1529189
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "44"
    "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/page-2-44"
    "field_display_title" => "44"
    "field_folder" => "2"
    "field_image_name" => "44"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1046
      #items: array:1 [
        0 => App\Models\Branch {#1008
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1529306
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1007
              #items: array:1 [
                0 => App\Models\Term {#1006
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [ …7]
                  #original: array:7 [ …7]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "3"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1009
              #items: array:1 [
                0 => App\Models\Book {#1010
                  #connection: "mysql"
                  #table: "books"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:50 [ …50]
                  #original: array:50 [ …50]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1043
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1529306
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1007}
            "field_page_start" => "3"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1009}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1043}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1080
      #items: array:1 [
        0 => App\Models\Book {#1044
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:50 [
            "id" => 2066
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1047
              #items: array:1 [
                0 => App\Models\Term {#1045
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1048
              #items: array:1 [
                0 => App\Models\Term {#1049
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1050
              #items: array:1 [
                0 => App\Models\Term {#1051
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1052
              #items: array:4 [
                0 => App\Models\Term {#1053
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Term {#1054
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Term {#1055
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Term {#1056
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1057
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1058
              #items: array:1 [
                0 => App\Models\Term {#1059
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1060
              #items: array:1 [
                0 => App\Models\Term {#1061
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1062
              #items: array:1 [
                0 => App\Models\Term {#1063
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1064
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1065
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1066
              #items: array:1 [
                0 => App\Models\Term {#1067
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #observables: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1068
              #items: array:1 [
                0 => App\Models\Term {#1069
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
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                  #touches: []
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1070
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1071
              #items: array:1 [
                0 => App\Models\Term {#1072
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
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                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
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                  #touches: []
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2019"
            "field_publication_year_until" => null
            "field_part" => "1, 2"
            "field_part_writing" => "Часть"
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебное пособие"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "915"
            "field_priority" => null
            "field_default_folder" => "/fizika_07/gendenshtejn-u/"
            "field_isbn" => "978-5-09-107477-2"
            "field_cover" => array:2 [
              0 => "/media/fizika_07/gendenshtejn-u/covers/cover1.webp?ts=1762198542"
              1 => "/media/fizika_07/gendenshtejn-u/covers/cover2.webp?ts=1762198542"
            ]
            "field_cover_alts" => array:2 [
              0 => ""
              1 => ""
            ]
            "field_covers" => array:2 [
              0 => array:4 [
                "path" => "/media/fizika_07/gendenshtejn-u/covers/cover1.webp?ts=1762198542"
                "alt" => ""
                "width" => "2322"
                "height" => "3039"
              ]
              1 => array:4 [
                "path" => "/media/fizika_07/gendenshtejn-u/covers/cover2.webp?ts=1762198542"
                "alt" => ""
                "width" => "2322"
                "height" => "3039"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1073
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1074
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1075
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1076
              #items: array:1 [
                0 => App\Models\Term {#1077
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
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                  #perPage: 15
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "breadcrumbs" => array:3 [
              "class" => 378
              "subject" => 556
              "class_subject" => 491
            ]
          ]
          #original: array:50 [
            "id" => 2066
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1047}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1048}
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1050}
            "field_author" => Illuminate\Database\Eloquent\Collection {#1052}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1057}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1058}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1060}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1062}
            "field_series" => Illuminate\Database\Eloquent\Collection {#1064}
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1065}
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1066}
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1068}
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1070}
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1071}
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2019"
            "field_publication_year_until" => null
            "field_part" => "1, 2"
            "field_part_writing" => "Часть"
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебное пособие"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "915"
            "field_priority" => null
            "field_default_folder" => "/fizika_07/gendenshtejn-u/"
            "field_isbn" => "978-5-09-107477-2"
            "field_cover" => array:2 [
              0 => "/media/fizika_07/gendenshtejn-u/covers/cover1.webp?ts=1762198542"
              1 => "/media/fizika_07/gendenshtejn-u/covers/cover2.webp?ts=1762198542"
            ]
            "field_cover_alts" => array:2 [
              0 => ""
              1 => ""
            ]
            "field_covers" => array:2 [
              0 => array:4 [
                "path" => "/media/fizika_07/gendenshtejn-u/covers/cover1.webp?ts=1762198542"
                "alt" => ""
                "width" => "2322"
                "height" => "3039"
              ]
              1 => array:4 [
                "path" => "/media/fizika_07/gendenshtejn-u/covers/cover2.webp?ts=1762198542"
                "alt" => ""
                "width" => "2322"
                "height" => "3039"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1073}
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1074}
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1075}
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1076}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "breadcrumbs" => array:3 [
              "class" => 378
              "subject" => 556
              "class_subject" => 491
            ]
          ]
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          +timestamps: true
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          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "field_metatags_title" => null
    "field_metatags_description" => null
    "field_h1" => null
    "field_description_top" => null
    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1078
      #items: []
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1089
      #items: array:1 [
        0 => App\Models\Element {#1088
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #perPage: 15
          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1840527
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1098
              #items: array:1 [
                0 => App\Models\Edition {#1090
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [ …21]
                  #original: array:21 [ …21]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "book_page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "44-1.jpg"
                "alt" => null
                "width" => "1873"
                "height" => 2836
                "path" => "/media/fizika_07/gendenshtejn-u/0-2/44-1.webp?ts=1763134272"
              ]
            ]
          ]
          #original: array:6 [
            "id" => 1840527
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1098}
            "book_page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "44-1.jpg"
                "alt" => null
                "width" => "1873"
                "height" => 2836
                "path" => "/media/fizika_07/gendenshtejn-u/0-2/44-1.webp?ts=1763134272"
              ]
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "next" => Illuminate\Database\Eloquent\Collection {#4739
      #items: array:1 [
        0 => App\Models\BookPage {#4740
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:21 [
            "id" => 1529190
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/page-2-45"
            "field_display_title" => "45"
            "field_folder" => "2"
            "field_image_name" => "45"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4756
              #items: array:1 [
                0 => App\Models\Branch {#1112
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4755
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#4754
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#4862
              #items: array:1 [
                0 => App\Models\Element {#4741
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1529191"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4750
              #items: array:4 [
                0 => App\Models\Task {#4874
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Task {#4881
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Task {#4893
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Task {#4905
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:21 [
            "id" => 1529190
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/page-2-45"
            "field_display_title" => "45"
            "field_folder" => "2"
            "field_image_name" => "45"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4756}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4755}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#4754}
            "content" => Illuminate\Database\Eloquent\Collection {#4862}
            "next" => array:2 [
              "refs" => "1529191"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4750}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
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          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "previous" => Illuminate\Database\Eloquent\Collection {#4734
      #items: array:1 [
        0 => App\Models\BookPage {#4733
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:21 [
            "id" => 1529188
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "43"
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/page-2-43"
            "field_display_title" => "43"
            "field_folder" => "2"
            "field_image_name" => "43"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4735
              #items: array:1 [
                0 => App\Models\Branch {#1112}
              ]
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4736
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#4737
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#4747
              #items: array:1 [
                0 => App\Models\Element {#4746
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1529187"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4738
              #items: array:9 [
                0 => App\Models\Task {#4759
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Task {#4766
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Task {#4778
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Task {#4790
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                4 => App\Models\Task {#4802
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                   …9
                }
                5 => App\Models\Task {#4814 …30}
                6 => App\Models\Task {#4826 …30}
                7 => App\Models\Task {#4838 …30}
                8 => App\Models\Task {#4850 …30}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:21 [
            "id" => 1529188
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    "tasks" => Illuminate\Database\Eloquent\Collection {#1079
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                0 => App\Models\Branch {#1008}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1242
              #items: array:3 [
                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
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            }
            "content" => Illuminate\Database\Eloquent\Collection {#1241
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                0 => App\Models\Element {#1252 …30}
                1 => App\Models\Element {#1254 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1249
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        }
        1 => App\Models\Task {#1244
          #connection: "mysql"
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            "created_at" => "2026-04-10 13:58:26"
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1243
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1247
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                0 => App\Models\Branch {#1112}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1245
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                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1246
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                1 => App\Models\Element {#1272 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1267
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        2 => App\Models\Task {#1261
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1248
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1265
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                0 => App\Models\Branch {#1112}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1262
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                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
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            "content" => Illuminate\Database\Eloquent\Collection {#1264
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                1 => App\Models\Element {#1284 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1279
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            "field_display_title" => "22"
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        3 => App\Models\Task {#1274
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1266
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1277
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                0 => App\Models\Branch {#1112}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1275
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                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1276
              #items: array:2 [
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                1 => App\Models\Element {#1296 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1291
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                0 => App\Models\Book {#1044}
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            "field_display_title" => "23"
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            0 => "*"
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        4 => App\Models\Task {#1286
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #attributes: array:24 [
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1278
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                0 => App\Models\Term {#1108 …30}
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                0 => App\Models\Branch {#1112}
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              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1287
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                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1288
              #items: array:2 [
                0 => App\Models\Element {#1306 …30}
                1 => App\Models\Element {#1308 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1303
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            "book" => Illuminate\Database\Eloquent\Collection {#1303}
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        5 => App\Models\Task {#1298
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1529988
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-25"
            "field_display_title" => "25"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1290
              #items: array:1 [
                0 => App\Models\Term {#1108 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1305
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1301
              #items: array:1 [
                0 => App\Models\Branch {#1112}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1299
              #items: array:3 [
                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1300
              #items: array:2 [
                0 => App\Models\Element {#1318 …30}
                1 => App\Models\Element {#1320 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1529989"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1529987"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1315
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1529988
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-25"
            "field_display_title" => "25"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1290}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1305}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1301}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1299}
            "content" => Illuminate\Database\Eloquent\Collection {#1300}
            "next" => array:2 [
              "refs" => "1529989"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1529987"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1315}
            "page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        6 => App\Models\Task {#1310
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1529989
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-26"
            "field_display_title" => "26"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1302
              #items: array:1 [
                0 => App\Models\Term {#1108 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1317
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1313
              #items: array:1 [
                0 => App\Models\Branch {#1112}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1311
              #items: array:3 [
                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1312
              #items: array:2 [
                0 => App\Models\Element {#1330 …30}
                1 => App\Models\Element {#1332 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1529990"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1529988"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1327
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1529989
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            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-26"
            "field_display_title" => "26"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1302}
            "field_metatags_title" => null
            "field_metatags_description" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1317}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1313}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1311}
            "content" => Illuminate\Database\Eloquent\Collection {#1312}
            "next" => array:2 [
              "refs" => "1529990"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1529988"
              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1327}
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              "type" => "book_page"
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          ]
          #changes: []
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            0 => "*"
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        }
        7 => App\Models\Task {#1322
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #perPage: 15
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1529990
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-27"
            "field_display_title" => "27"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1314
              #items: array:1 [
                0 => App\Models\Term {#1108 …30}
              ]
              #escapeWhenCastingToString: false
            }
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            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1329
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1325
              #items: array:1 [
                0 => App\Models\Branch {#1112}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1323
              #items: array:3 [
                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1324
              #items: array:2 [
                0 => App\Models\Element {#1342 …30}
                1 => App\Models\Element {#1344 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1529991"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1529989"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1339
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1529990
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-27"
            "field_display_title" => "27"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1314}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1329}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1325}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1323}
            "content" => Illuminate\Database\Eloquent\Collection {#1324}
            "next" => array:2 [
              "refs" => "1529991"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1529989"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1339}
            "page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        8 => App\Models\Task {#1334
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1529991
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
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            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-28"
            "field_display_title" => "28"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1326
              #items: array:1 [
                0 => App\Models\Term {#1108 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1341
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1337
              #items: array:1 [
                0 => App\Models\Branch {#1112}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1335
              #items: array:3 [
                0 => App\Models\Branch {#1112}
                1 => App\Models\Branch {#1150 …30}
                2 => App\Models\Branch {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1336
              #items: array:2 [
                0 => App\Models\Element {#1354 …30}
                1 => App\Models\Element {#1356 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1529992"
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            ]
            "previous" => array:2 [
              "refs" => "1529990"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1351
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
          ]
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            "id" => 1529991
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => null
            "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/20-28"
            "field_display_title" => "28"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1326}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1341}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1337}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1335}
            "content" => Illuminate\Database\Eloquent\Collection {#1336}
            "next" => array:2 [
              "refs" => "1529992"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1529990"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1351}
            "page" => array:2 [
              "refs" => "1529189"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
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          #touches: []
          +timestamps: true
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          #guarded: array:1 [
            0 => "*"
          ]
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      ]
      #escapeWhenCastingToString: false
    }
  ]
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    "id" => 1529189
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "44"
    "field_url" => "/7-klass/fizika/gendenshtejn-uchebnik/page-2-44"
    "field_display_title" => "44"
    "field_folder" => "2"
    "field_image_name" => "44"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1046}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1080}
    "field_metatags_title" => null
    "field_metatags_description" => null
    "field_h1" => null
    "field_description_top" => null
    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1078}
    "content" => Illuminate\Database\Eloquent\Collection {#1089}
    "next" => array:2 [
      "refs" => "1529190"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1529188"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1079}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 7 класс Учебник, авторы: Генденштейн Лев Элевич, Булатова Альбина Александрова, Корнильев Игорь Николаевич, Кошкина Анжелика Васильевна, издательство Просвещение, Москва, 2019, бирюзового цвета, Часть 2, страница 44
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