Номер 13, страница 110, часть 1 - гдз по алгебре 10 класс учебник Пак, Ардакулы

Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019

Авторы: Пак О. В., Ардакулы Д., Ескендирова Е. В.

Тип: Учебник

Издательство: Алматыкітап баспасы

Год издания: 2019 - 2026

Часть: 1

ISBN: 978-601-01-3958-9

Рекомендовано Министерством образования и науки Республики Казахстан

Часть 1. Глава 2. Тригонометрические функции. Параграф 3. Обратные тригонометрические функции. 3.4. Арксинус. Задачи - номер 13, страница 110.

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                            "id" => 5459
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "10"
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                            "field_translit" => "desjatyj"
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                      ]
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1125
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                          #table: "terms"
                          #primaryKey: "id"
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                          #attributes: array:6 [
                            "id" => 7006
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                            "field_cases" => array:6 [ …6]
                            "field_translit" => "almatykitap baspasy"
                          ]
                          #original: array:6 [
                            "id" => 7006
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматыкітап баспасы"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "almatykitap baspasy"
                          ]
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                          #dateFormat: null
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                          ]
                        }
                      ]
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                    }
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1127
                      #items: array:3 [
                        0 => App\Models\Term {#1128
                          #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 [
                            "id" => 7007
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Пак"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Олег"
                            "field_patronymic" => "Владимирович"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 7007
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Пак"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Олег"
                            "field_patronymic" => "Владимирович"
                            "field_surname_rp" => null
                          ]
                          #changes: []
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                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
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                          #touches: []
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                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Term {#1129
                          #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 [
                            "id" => 7008
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ардакулы"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Дархан"
                            "field_patronymic" => null
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 7008
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ардакулы"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Дархан"
                            "field_patronymic" => null
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        2 => App\Models\Term {#1130
                          #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 [
                            "id" => 7009
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ескендирова"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Елена"
                            "field_patronymic" => "Викторовна"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 7009
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ескендирова"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Елена"
                            "field_patronymic" => "Викторовна"
                            "field_surname_rp" => null
                          ]
                          #changes: []
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                          #dateFormat: null
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                          #dispatchesEvents: []
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                          #touches: []
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                          #hidden: []
                          #visible: []
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                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1131
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1132
                      #items: array:1 [
                        0 => App\Models\Term {#1133
                          #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 [
                            "id" => 6671
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Учебник"
                            "field_book_type_foreign" => null
                            "field_cases" => array:6 [ …6]
                            "field_plural_form" => null
                            "field_short_name" => null
                            "field_short_name_foreign" => null
                            "field_translit" => "uchebnik"
                          ]
                          #original: array:10 [
                            "id" => 6671
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Учебник"
                            "field_book_type_foreign" => null
                            "field_cases" => array:6 [ …6]
                            "field_plural_form" => null
                            "field_short_name" => null
                            "field_short_name_foreign" => null
                            "field_translit" => "uchebnik"
                          ]
                          #changes: []
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                          #attributeCastCache: []
                          #dateFormat: null
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                          #dispatchesEvents: []
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                          #relations: []
                          #touches: []
                          +timestamps: true
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                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1134
                      #items: array:1 [
                        0 => App\Models\Term {#1135
                          #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 [
                            "id" => 6994
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Казахстан"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "kazakhstan"
                          ]
                          #original: array:6 [
                            "id" => 6994
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Казахстан"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "kazakhstan"
                          ]
                          #changes: []
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                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
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                          #dispatchesEvents: []
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                          #touches: []
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                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1136
                      #items: array:1 [
                        0 => App\Models\Term {#1137
                          #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 [
                            "id" => 6995
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматы"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "almaty"
                          ]
                          #original: array:6 [
                            "id" => 6995
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматы"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "almaty"
                          ]
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                          #guarded: array:1 [ …1]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1138
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1139
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1140
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1141
                      #items: []
                      #escapeWhenCastingToString: false
                    }
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                      #escapeWhenCastingToString: false
                    }
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                      #items: []
                      #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" => "Учебник для учащихся 10 класса общеобразовательной школы общественно-гуманитарного направления"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
                    "field_priority" => "6"
                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [
                      0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                        "alt" => ""
                        "width" => "1940"
                        "height" => "2895"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1144
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1145
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1146
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1147
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
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                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
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                      "class_subject" => 387
                    ]
                  ]
                  #original: array:50 [
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                    "updated_at" => null
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                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1122}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1123}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1125}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1127}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1131}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1132}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1134}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1136}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1138}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1139}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1140}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1141}
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1142}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1143}
                    "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" => "Учебник для учащихся 10 класса общеобразовательной школы общественно-гуманитарного направления"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
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                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [
                      0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                        "alt" => ""
                        "width" => "1940"
                        "height" => "2895"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1144}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1145}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1146}
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1147}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 381
                      "subject" => 542
                      "class_subject" => 387
                    ]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1148
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119328
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1121}
            "field_page_start" => "6"
            "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" => array:1 [
              0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
            ]
            "field_branch_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                "alt" => ""
                "width" => "1940"
                "height" => "2895"
              ]
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1150}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1148}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1149
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119358
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Тригонометрические функции"
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1154
              #items: array:1 [
                0 => App\Models\Term {#1151
                  #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 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #original: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "71"
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            "field_navigation_title" => null
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            "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 {#1153
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1152
              #items: array:1 [
                0 => App\Models\Branch {#1034}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119358
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Тригонометрические функции"
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1154}
            "field_page_start" => "71"
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            "field_display_branch_in_title" => "1"
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            "field_h1" => null
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            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1153}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1152}
          ]
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          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Branch {#1155
          #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" => 1119373
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Обратные тригонометрические функции"
            "field_branch_order" => "3"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1159
              #items: array:1 [
                0 => App\Models\Term {#1156
                  #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 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #original: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "99"
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            "field_h1" => null
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            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1158
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1167
              #items: array:1 [
                0 => App\Models\Branch {#1166
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1119358
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Тригонометрические функции"
                    "field_branch_order" => "2"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1168 …2}
                    "field_page_start" => "71"
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1169 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1170 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119358
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Тригонометрические функции"
                    "field_branch_order" => "2"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1168 …2}
                    "field_page_start" => "71"
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                    "book" => Illuminate\Database\Eloquent\Collection {#1169 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1170 …2}
                  ]
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                  #attributeCastCache: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119373
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Обратные тригонометрические функции"
            "field_branch_order" => "3"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1159}
            "field_page_start" => "99"
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            "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 {#1158}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1167}
          ]
          #changes: []
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          #dateFormat: null
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          #touches: []
          +timestamps: true
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Branch {#1160
          #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" => 1119376
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "3.4. Арксинус"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1157
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "106"
            "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 {#1163
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1176
              #items: array:1 [
                0 => App\Models\Branch {#1175
                  #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" => 1119373
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Обратные тригонометрические функции"
                    "field_branch_order" => "3"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "field_page_start" => "99"
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                    "field_h1" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1179 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119373
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Обратные тригонометрические функции"
                    "field_branch_order" => "3"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "field_page_start" => "99"
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                    "field_h1" => null
                    "field_description_top" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1179 …2}
                  ]
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119376
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "3.4. Арксинус"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1157}
            "field_page_start" => "106"
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            "field_branch_expanded" => "0"
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            "field_display_task_interval" => "0"
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            "field_metatags_description" => null
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            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1163}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1176}
          ]
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Branch {#1164
          #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" => 1119377
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Задачи"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1161
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "106"
            "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 {#1172
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1185
              #items: array:1 [
                0 => App\Models\Branch {#1184
                  #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" => 1119376
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "3.4. Арксинус"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1186 …2}
                    "field_page_start" => "106"
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                    "field_display_branch_in_title" => "1"
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                    "field_branch_title_in_content" => "0"
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                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1187 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1188 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119376
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "3.4. Арксинус"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1186 …2}
                    "field_page_start" => "106"
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                    "field_h1" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1187 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1188 …2}
                  ]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
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            "text" => "<p>Показания электронных часов являются палиндромом, если они читаются одинаково слева направо и справа налево. Время на часах имеет формат ЧЧ:ММ. Обозначим четыре цифры времени как $D_1D_2:D_3D_4$. Условие палиндрома означает, что $D_1 = D_4$ и $D_2 = D_3$. Следовательно, время должно иметь вид $D_1D_2:D_2D_1$.</p><p>При этом должны выполняться ограничения, связанные с форматом времени:<br>1. Часы ($D_1D_2$) должны быть в диапазоне от 00 до 23, то есть $0 \le 10 \cdot D_1 + D_2 \le 23$.<br>2. Минуты ($D_2D_1$) должны быть в диапазоне от 00 до 59, то есть $0 \le 10 \cdot D_2 + D_1 \le 59$.</p><p>Для нахождения всех таких моментов времени рассмотрим все возможные значения для первой цифры часов $D_1$.</p><p><strong>Случай 1: $D_1 = 0$</strong><br>Время имеет вид $0D_2:D_20$. Часы ($0D_2$) всегда корректны для любой цифры $D_2$. Минуты ($10 \cdot D_2$) не должны превышать 59, что дает $D_2 \le 5.9$. Таким образом, $D_2$ может быть 0, 1, 2, 3, 4, 5. Это дает 6 палиндромов: 00:00, 01:10, 02:20, 03:30, 04:40, 05:50.</p><p><strong>Случай 2: $D_1 = 1$</strong><br>Время имеет вид $1D_2:D_21$. Часы ($1D_2$) всегда корректны для любой цифры $D_2$. Минуты ($10 \cdot D_2 + 1$) не должны превышать 59, что дает $10 \cdot D_2 \le 58$ или $D_2 \le 5.8$. Таким образом, $D_2$ может быть 0, 1, 2, 3, 4, 5. Это дает еще 6 палиндромов: 10:01, 11:11, 12:21, 13:31, 14:41, 15:51.</p><p><strong>Случай 3: $D_1 = 2$</strong><br>Время имеет вид $2D_2:D_22$. Часы ($20+D_2$) не должны превышать 23, что дает $D_2 \le 3$. Минуты ($10 \cdot D_2 + 2$) не должны превышать 59, что выполняется для всех $D_2 \le 3$. Таким образом, $D_2$ может быть 0, 1, 2, 3. Это дает 4 палиндрома: 20:02, 21:12, 22:22, 23:32.</p><p><strong>Случай 4: $D_1 \ge 3$</strong><br>Часы ($D_1D_2$) будут равны 30 или больше, что выходит за допустимый предел в 23 часа. Следовательно, таких палиндромов не существует.</p><p>Общее количество палиндромов в течение суток составляет $6 + 6 + 4 = 16$.</p><p>Вопрос задачи состоит в том, чтобы найти количество таких моментов времени в промежутке "между 00:01 и 23:59". Этот промежуток исключает время 00:00. Все остальные 15 найденных палиндромов (от 01:10 до 23:32) попадают в этот интервал.</p><p>Таким образом, количество раз, когда показания часов будут читаться одинаково слева направо и справа налево в указанный промежуток времени, равно $16 - 1 = 15$.</p><p><strong>Ответ:</strong> 15</p>"
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            "task" => array:2 [
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            "text" => "<p>Показания электронных часов являются палиндромом, если они читаются одинаково слева направо и справа налево. Время на часах имеет формат ЧЧ:ММ. Обозначим четыре цифры времени как $D_1D_2:D_3D_4$. Условие палиндрома означает, что $D_1 = D_4$ и $D_2 = D_3$. Следовательно, время должно иметь вид $D_1D_2:D_2D_1$.</p><p>При этом должны выполняться ограничения, связанные с форматом времени:<br>1. Часы ($D_1D_2$) должны быть в диапазоне от 00 до 23, то есть $0 \le 10 \cdot D_1 + D_2 \le 23$.<br>2. Минуты ($D_2D_1$) должны быть в диапазоне от 00 до 59, то есть $0 \le 10 \cdot D_2 + D_1 \le 59$.</p><p>Для нахождения всех таких моментов времени рассмотрим все возможные значения для первой цифры часов $D_1$.</p><p><strong>Случай 1: $D_1 = 0$</strong><br>Время имеет вид $0D_2:D_20$. Часы ($0D_2$) всегда корректны для любой цифры $D_2$. Минуты ($10 \cdot D_2$) не должны превышать 59, что дает $D_2 \le 5.9$. Таким образом, $D_2$ может быть 0, 1, 2, 3, 4, 5. Это дает 6 палиндромов: 00:00, 01:10, 02:20, 03:30, 04:40, 05:50.</p><p><strong>Случай 2: $D_1 = 1$</strong><br>Время имеет вид $1D_2:D_21$. Часы ($1D_2$) всегда корректны для любой цифры $D_2$. Минуты ($10 \cdot D_2 + 1$) не должны превышать 59, что дает $10 \cdot D_2 \le 58$ или $D_2 \le 5.8$. Таким образом, $D_2$ может быть 0, 1, 2, 3, 4, 5. Это дает еще 6 палиндромов: 10:01, 11:11, 12:21, 13:31, 14:41, 15:51.</p><p><strong>Случай 3: $D_1 = 2$</strong><br>Время имеет вид $2D_2:D_22$. Часы ($20+D_2$) не должны превышать 23, что дает $D_2 \le 3$. Минуты ($10 \cdot D_2 + 2$) не должны превышать 59, что выполняется для всех $D_2 \le 3$. Таким образом, $D_2$ может быть 0, 1, 2, 3. Это дает 4 палиндрома: 20:02, 21:12, 22:22, 23:32.</p><p><strong>Случай 4: $D_1 \ge 3$</strong><br>Часы ($D_1D_2$) будут равны 30 или больше, что выходит за допустимый предел в 23 часа. Следовательно, таких палиндромов не существует.</p><p>Общее количество палиндромов в течение суток составляет $6 + 6 + 4 = 16$.</p><p>Вопрос задачи состоит в том, чтобы найти количество таких моментов времени в промежутке "между 00:01 и 23:59". Этот промежуток исключает время 00:00. Все остальные 15 найденных палиндромов (от 01:10 до 23:32) попадают в этот интервал.</p><p>Таким образом, количество раз, когда показания часов будут читаться одинаково слева направо и справа налево в указанный промежуток времени, равно $16 - 1 = 15$.</p><p><strong>Ответ:</strong> 15</p>"
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№13 (с. 110)
Условие. №13 (с. 110)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 1, страница 110, номер 13, Условие

13. (4) Электронный будильник показывает часы (две цифры, от 00 до 23) и минуты (две цифры). Сколько раз между 00:01 и 23:59 показания часов будут читаться одинаково слева направо и справа налево?

Решение 2 (rus). №13 (с. 110)

Показания электронных часов являются палиндромом, если они читаются одинаково слева направо и справа налево. Время на часах имеет формат ЧЧ:ММ. Обозначим четыре цифры времени как $D_1D_2:D_3D_4$. Условие палиндрома означает, что $D_1 = D_4$ и $D_2 = D_3$. Следовательно, время должно иметь вид $D_1D_2:D_2D_1$.

При этом должны выполняться ограничения, связанные с форматом времени:
1. Часы ($D_1D_2$) должны быть в диапазоне от 00 до 23, то есть $0 \le 10 \cdot D_1 + D_2 \le 23$.
2. Минуты ($D_2D_1$) должны быть в диапазоне от 00 до 59, то есть $0 \le 10 \cdot D_2 + D_1 \le 59$.

Для нахождения всех таких моментов времени рассмотрим все возможные значения для первой цифры часов $D_1$.

Случай 1: $D_1 = 0$
Время имеет вид $0D_2:D_20$. Часы ($0D_2$) всегда корректны для любой цифры $D_2$. Минуты ($10 \cdot D_2$) не должны превышать 59, что дает $D_2 \le 5.9$. Таким образом, $D_2$ может быть 0, 1, 2, 3, 4, 5. Это дает 6 палиндромов: 00:00, 01:10, 02:20, 03:30, 04:40, 05:50.

Случай 2: $D_1 = 1$
Время имеет вид $1D_2:D_21$. Часы ($1D_2$) всегда корректны для любой цифры $D_2$. Минуты ($10 \cdot D_2 + 1$) не должны превышать 59, что дает $10 \cdot D_2 \le 58$ или $D_2 \le 5.8$. Таким образом, $D_2$ может быть 0, 1, 2, 3, 4, 5. Это дает еще 6 палиндромов: 10:01, 11:11, 12:21, 13:31, 14:41, 15:51.

Случай 3: $D_1 = 2$
Время имеет вид $2D_2:D_22$. Часы ($20+D_2$) не должны превышать 23, что дает $D_2 \le 3$. Минуты ($10 \cdot D_2 + 2$) не должны превышать 59, что выполняется для всех $D_2 \le 3$. Таким образом, $D_2$ может быть 0, 1, 2, 3. Это дает 4 палиндрома: 20:02, 21:12, 22:22, 23:32.

Случай 4: $D_1 \ge 3$
Часы ($D_1D_2$) будут равны 30 или больше, что выходит за допустимый предел в 23 часа. Следовательно, таких палиндромов не существует.

Общее количество палиндромов в течение суток составляет $6 + 6 + 4 = 16$.

Вопрос задачи состоит в том, чтобы найти количество таких моментов времени в промежутке "между 00:01 и 23:59". Этот промежуток исключает время 00:00. Все остальные 15 найденных палиндромов (от 01:10 до 23:32) попадают в этот интервал.

Таким образом, количество раз, когда показания часов будут читаться одинаково слева направо и справа налево в указанный промежуток времени, равно $16 - 1 = 15$.

Ответ: 15

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