Номер 6, страница 66, часть 2 - гдз по алгебре 10 класс учебник Пак, Ардакулы

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

Тип: Учебник

Издательство: Алматыкітап баспасы

Год издания: 2019 - 2026

Часть: 2

ISBN: 978-601-01-3958-9

Рекомендовано Министерством образования и науки Республики Казахстан

Часть 2. Глава 5. Производная. Параграф 3. Физический и геометрический смысл производной. 3.2. Касательная к графику функции. Упражнения - номер 6, страница 66.

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                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1191
                      #items: array:1 [
                        0 => App\Models\Term {#1192
                          #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" => 7006
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматыкітап баспасы"
                            "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"
                          ]
                          #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_author" => Illuminate\Database\Eloquent\Collection {#1193
                      #items: array:3 [
                        0 => App\Models\Term {#1194
                          #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: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Term {#1195
                          #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 {#1196
                          #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: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1197
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1198
                      #items: array:1 [
                        0 => App\Models\Term {#1199
                          #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 [
                            "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: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1200
                      #items: array:1 [
                        0 => App\Models\Term {#1201
                          #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: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1202
                      #items: array:1 [
                        0 => App\Models\Term {#1203
                          #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"
                          ]
                          #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_series" => Illuminate\Database\Eloquent\Collection {#1204
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1205
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1206
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1207
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1208
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1209
                      #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 {#1210
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1211
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1212
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1213
                      #items: []
                      #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" => 381
                      "subject" => 542
                      "class_subject" => 387
                    ]
                  ]
                  #original: array:50 [
                    "id" => 4295
                    "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 {#1188}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1189}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1191}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1193}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1197}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1198}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1200}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1202}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1204}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1205}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1206}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1207}
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1208}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1209}
                    "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 {#1210}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1211}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1212}
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1213}
                    "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 {#1214
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119426
            "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 {#1187}
            "field_page_start" => "5"
            "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 {#1216}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1214}
          ]
          #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 {#1215
          #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" => 1119427
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Производная"
            "field_branch_order" => "5"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1220
              #items: array:1 [
                0 => App\Models\Term {#1217
                  #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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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "5"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
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            "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 {#1219
              #items: array:1 [
                0 => App\Models\Book {#1186}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1218
              #items: array:1 [
                0 => App\Models\Branch {#1034}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119427
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Производная"
            "field_branch_order" => "5"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1220}
            "field_page_start" => "5"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
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            "field_navigation_title" => null
            "field_metatags_title" => null
            "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 {#1219}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1218}
          ]
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          #dateFormat: null
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Branch {#1221
          #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" => 1119437
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Физический и геометрический смысл производной"
            "field_branch_order" => "3"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1225
              #items: array:1 [
                0 => App\Models\Term {#1222
                  #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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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "59"
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            "field_branch_title_in_content" => "0"
            "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 {#1224
              #items: array:1 [
                0 => App\Models\Book {#1186}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1293
              #items: array:1 [
                0 => App\Models\Branch {#1223
                  #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" => 1119427
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Производная"
                    "field_branch_order" => "5"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1227 …2}
                    "field_page_start" => "5"
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                    "field_branch_expanded" => "0"
                    "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
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                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1228 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1257 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119427
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Производная"
                    "field_branch_order" => "5"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1227 …2}
                    "field_page_start" => "5"
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1228 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1257 …2}
                  ]
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                  #attributeCastCache: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119437
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Физический и геометрический смысл производной"
            "field_branch_order" => "3"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1225}
            "field_page_start" => "59"
            "field_branch_display" => "0"
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            "field_display_branch_in_title" => "1"
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            "field_branch_title_in_content" => "0"
            "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 {#1224}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1293}
          ]
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          #dateFormat: null
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          +timestamps: true
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          #hidden: []
          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Branch {#1291
          #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" => 1119439
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "3.2. Касательная к графику функции"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1292
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "64"
            "field_branch_display" => "0"
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            "field_display_branch_in_title" => "1"
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            "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 {#1294
              #items: array:1 [
                0 => App\Models\Book {#1186}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1303
              #items: array:1 [
                0 => App\Models\Branch {#1302
                  #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" => 1119437
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Физический и геометрический смысл производной"
                    "field_branch_order" => "3"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1304 …2}
                    "field_page_start" => "59"
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                    "field_h1" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1305 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1306 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119437
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Физический и геометрический смысл производной"
                    "field_branch_order" => "3"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1304 …2}
                    "field_page_start" => "59"
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                    "field_navigation_title" => null
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                    "field_h1" => null
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                    "field_description_bottom" => null
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                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1305 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1306 …2}
                  ]
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                  #attributeCastCache: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119439
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "3.2. Касательная к графику функции"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1292}
            "field_page_start" => "64"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
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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
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1294}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1303}
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Branch {#1296
          #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" => 1119440
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Упражнения"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1295
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "65"
            "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 {#1299
              #items: array:1 [
                0 => App\Models\Book {#1186}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1312
              #items: array:1 [
                0 => App\Models\Branch {#1311
                  #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" => 1119439
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "3.2. Касательная к графику функции"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1313 …2}
                    "field_page_start" => "64"
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                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
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                    "field_display_branch_page" => "1"
                    "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 {#1314 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1315 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119439
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "3.2. Касательная к графику функции"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1313 …2}
                    "field_page_start" => "64"
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                    "field_branch_title_in_content" => "0"
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                    "field_h1" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1314 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1315 …2}
                  ]
                  #changes: []
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                  #attributeCastCache: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119440
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Упражнения"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1295}
            "field_page_start" => "65"
            "field_branch_display" => "0"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1155
              #items: array:1 [
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                  #connection: "mysql"
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                  +exists: true
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                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1162 …2}
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                    "field_content_mode" => "text, image"
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                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1161 …2}
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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1160 …2}
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                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1159 …2}
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1162 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1161 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1160 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1159 …2}
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            "text" => "<p><strong>Упражнение 6</strong></p><p>Найти уравнения общих касательных к графикам функции $y = x^2$ и функции $y = -x^2 + 4x - 6$.</p>"
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                "path" => "/media/algebra_10/baspasy-u19/0-5-3-2upr/6-1.webp?ts=1753534850"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1155}
            "task" => array:2 [
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              "type" => "task"
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            "text" => "<p><strong>Упражнение 6</strong></p><p>Найти уравнения общих касательных к графикам функции $y = x^2$ и функции $y = -x^2 + 4x - 6$.</p>"
            "img" => array:1 [
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                "width" => "1711"
                "height" => 335
                "path" => "/media/algebra_10/baspasy-u19/0-5-3-2upr/6-1.webp?ts=1753534850"
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          +timestamps: true
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          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
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            "id" => 1551978
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1149
              #items: array:1 [
                0 => App\Models\Edition {#1158
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
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                  +incrementing: false
                  #with: []
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                    "created_at" => "2026-04-10 13:58:26"
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                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1153 …2}
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                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1154 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1152 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1148 …2}
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1153 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text"
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                    "field_solution_author" => "Gemini 2.5 Pro"
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                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1154 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1152 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1148 …2}
                    "field_content_source" => null
                  ]
                  #changes: []
                  #casts: []
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                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
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                  +timestamps: true
                  +usesUniqueIds: false
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              ]
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            "task" => array:2 [
              "refs" => "1120257"
              "type" => "task"
            ]
            "text" => "<p>Пусть искомая общая касательная задается уравнением $y = kx + b$. Эта прямая должна касаться графиков обеих функций: $f(x) = x^2$ и $g(x) = -x^2 + 4x - 6$.</p><p>Для нахождения уравнений касательных воспользуемся производными. Уравнение касательной к графику функции $h(x)$ в точке с абсциссой $x_0$ имеет вид $y = h(x_0) + h'(x_0)(x-x_0)$.</p><p>1. Рассмотрим касательную к графику функции $f(x) = x^2$.Пусть точка касания имеет абсциссу $x_1$.Найдем производную: $f'(x) = 2x$.В точке $x_1$ значение производной равно $f'(x_1) = 2x_1$, а значение функции $f(x_1) = x_1^2$.Уравнение касательной в этой точке:$y = f(x_1) + f'(x_1)(x - x_1) = x_1^2 + 2x_1(x - x_1) = x_1^2 + 2x_1 x - 2x_1^2$.$y = 2x_1 x - x_1^2$.Сравнивая это уравнение с $y = kx + b$, получаем:$k = 2x_1$$b = -x_1^2$</p><p>2. Рассмотрим касательную к графику функции $g(x) = -x^2 + 4x - 6$.Пусть точка касания имеет абсциссу $x_2$.Найдем производную: $g'(x) = -2x + 4$.В точке $x_2$ значение производной равно $g'(x_2) = -2x_2 + 4$, а значение функции $g(x_2) = -x_2^2 + 4x_2 - 6$.Уравнение касательной в этой точке:$y = g(x_2) + g'(x_2)(x - x_2) = (-x_2^2 + 4x_2 - 6) + (-2x_2 + 4)(x - x_2)$.Раскроем скобки и приведем подобные слагаемые:$y = (-2x_2 + 4)x + (-x_2^2 + 4x_2 - 6) - x_2(-2x_2 + 4)$$y = (-2x_2 + 4)x - x_2^2 + 4x_2 - 6 + 2x_2^2 - 4x_2$$y = (-2x_2 + 4)x + x_2^2 - 6$.Сравнивая это уравнение с $y = kx + b$, получаем:$k = -2x_2 + 4$$b = x_2^2 - 6$</p><p>3. Так как это одна и та же общая касательная, ее параметры $k$ и $b$ должны совпадать. Приравняем полученные выражения для $k$ и $b$:$ \begin{cases} 2x_1 = -2x_2 + 4 \\ -x_1^2 = x_2^2 - 6 \end{cases} $</p><p>Из первого уравнения системы выразим $x_1$:$x_1 = -x_2 + 2$.Подставим это выражение во второе уравнение системы:$-(-x_2 + 2)^2 = x_2^2 - 6$$-(x_2^2 - 4x_2 + 4) = x_2^2 - 6$$-x_2^2 + 4x_2 - 4 = x_2^2 - 6$$2x_2^2 - 4x_2 - 2 = 0$Разделим обе части уравнения на 2:$x_2^2 - 2x_2 - 1 = 0$.</p><p>Решим полученное квадратное уравнение для $x_2$:$D = (-2)^2 - 4 \cdot 1 \cdot (-1) = 4 + 4 = 8$$x_2 = \frac{2 \pm \sqrt{8}}{2} = \frac{2 \pm 2\sqrt{2}}{2} = 1 \pm \sqrt{2}$.</p><p>Таким образом, мы получили две абсциссы точек касания, что означает существование двух общих касательных. Найдем их уравнения.</p><p><b>Случай 1:</b> $x_2 = 1 + \sqrt{2}$.Найдем параметры касательной $k$ и $b$:$k = -2x_2 + 4 = -2(1 + \sqrt{2}) + 4 = -2 - 2\sqrt{2} + 4 = 2 - 2\sqrt{2}$.$b = x_2^2 - 6 = (1 + \sqrt{2})^2 - 6 = (1 + 2\sqrt{2} + 2) - 6 = 3 + 2\sqrt{2} - 6 = -3 + 2\sqrt{2}$.Уравнение первой касательной: $y = (2 - 2\sqrt{2})x - 3 + 2\sqrt{2}$.</p><p><b>Случай 2:</b> $x_2 = 1 - \sqrt{2}$.Найдем параметры касательной $k$ и $b$:$k = -2x_2 + 4 = -2(1 - \sqrt{2}) + 4 = -2 + 2\sqrt{2} + 4 = 2 + 2\sqrt{2}$.$b = x_2^2 - 6 = (1 - \sqrt{2})^2 - 6 = (1 - 2\sqrt{2} + 2) - 6 = 3 - 2\sqrt{2} - 6 = -3 - 2\sqrt{2}$.Уравнение второй касательной: $y = (2 + 2\sqrt{2})x - 3 - 2\sqrt{2}$.</p><p><strong>Ответ:</strong> $y = (2 + 2\sqrt{2})x - 3 - 2\sqrt{2}$ и $y = (2 - 2\sqrt{2})x - 3 + 2\sqrt{2}$.</p>"
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            "id" => 1551978
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1149}
            "task" => array:2 [
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              "type" => "task"
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            "text" => "<p>Пусть искомая общая касательная задается уравнением $y = kx + b$. Эта прямая должна касаться графиков обеих функций: $f(x) = x^2$ и $g(x) = -x^2 + 4x - 6$.</p><p>Для нахождения уравнений касательных воспользуемся производными. Уравнение касательной к графику функции $h(x)$ в точке с абсциссой $x_0$ имеет вид $y = h(x_0) + h'(x_0)(x-x_0)$.</p><p>1. Рассмотрим касательную к графику функции $f(x) = x^2$.Пусть точка касания имеет абсциссу $x_1$.Найдем производную: $f'(x) = 2x$.В точке $x_1$ значение производной равно $f'(x_1) = 2x_1$, а значение функции $f(x_1) = x_1^2$.Уравнение касательной в этой точке:$y = f(x_1) + f'(x_1)(x - x_1) = x_1^2 + 2x_1(x - x_1) = x_1^2 + 2x_1 x - 2x_1^2$.$y = 2x_1 x - x_1^2$.Сравнивая это уравнение с $y = kx + b$, получаем:$k = 2x_1$$b = -x_1^2$</p><p>2. Рассмотрим касательную к графику функции $g(x) = -x^2 + 4x - 6$.Пусть точка касания имеет абсциссу $x_2$.Найдем производную: $g'(x) = -2x + 4$.В точке $x_2$ значение производной равно $g'(x_2) = -2x_2 + 4$, а значение функции $g(x_2) = -x_2^2 + 4x_2 - 6$.Уравнение касательной в этой точке:$y = g(x_2) + g'(x_2)(x - x_2) = (-x_2^2 + 4x_2 - 6) + (-2x_2 + 4)(x - x_2)$.Раскроем скобки и приведем подобные слагаемые:$y = (-2x_2 + 4)x + (-x_2^2 + 4x_2 - 6) - x_2(-2x_2 + 4)$$y = (-2x_2 + 4)x - x_2^2 + 4x_2 - 6 + 2x_2^2 - 4x_2$$y = (-2x_2 + 4)x + x_2^2 - 6$.Сравнивая это уравнение с $y = kx + b$, получаем:$k = -2x_2 + 4$$b = x_2^2 - 6$</p><p>3. Так как это одна и та же общая касательная, ее параметры $k$ и $b$ должны совпадать. Приравняем полученные выражения для $k$ и $b$:$ \begin{cases} 2x_1 = -2x_2 + 4 \\ -x_1^2 = x_2^2 - 6 \end{cases} $</p><p>Из первого уравнения системы выразим $x_1$:$x_1 = -x_2 + 2$.Подставим это выражение во второе уравнение системы:$-(-x_2 + 2)^2 = x_2^2 - 6$$-(x_2^2 - 4x_2 + 4) = x_2^2 - 6$$-x_2^2 + 4x_2 - 4 = x_2^2 - 6$$2x_2^2 - 4x_2 - 2 = 0$Разделим обе части уравнения на 2:$x_2^2 - 2x_2 - 1 = 0$.</p><p>Решим полученное квадратное уравнение для $x_2$:$D = (-2)^2 - 4 \cdot 1 \cdot (-1) = 4 + 4 = 8$$x_2 = \frac{2 \pm \sqrt{8}}{2} = \frac{2 \pm 2\sqrt{2}}{2} = 1 \pm \sqrt{2}$.</p><p>Таким образом, мы получили две абсциссы точек касания, что означает существование двух общих касательных. Найдем их уравнения.</p><p><b>Случай 1:</b> $x_2 = 1 + \sqrt{2}$.Найдем параметры касательной $k$ и $b$:$k = -2x_2 + 4 = -2(1 + \sqrt{2}) + 4 = -2 - 2\sqrt{2} + 4 = 2 - 2\sqrt{2}$.$b = x_2^2 - 6 = (1 + \sqrt{2})^2 - 6 = (1 + 2\sqrt{2} + 2) - 6 = 3 + 2\sqrt{2} - 6 = -3 + 2\sqrt{2}$.Уравнение первой касательной: $y = (2 - 2\sqrt{2})x - 3 + 2\sqrt{2}$.</p><p><b>Случай 2:</b> $x_2 = 1 - \sqrt{2}$.Найдем параметры касательной $k$ и $b$:$k = -2x_2 + 4 = -2(1 - \sqrt{2}) + 4 = -2 + 2\sqrt{2} + 4 = 2 + 2\sqrt{2}$.$b = x_2^2 - 6 = (1 - \sqrt{2})^2 - 6 = (1 - 2\sqrt{2} + 2) - 6 = 3 - 2\sqrt{2} - 6 = -3 - 2\sqrt{2}$.Уравнение второй касательной: $y = (2 + 2\sqrt{2})x - 3 - 2\sqrt{2}$.</p><p><strong>Ответ:</strong> $y = (2 + 2\sqrt{2})x - 3 - 2\sqrt{2}$ и $y = (2 - 2\sqrt{2})x - 3 + 2\sqrt{2}$.</p>"
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    "book" => Illuminate\Database\Eloquent\Collection {#1168
      #items: array:1 [
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    "page" => Illuminate\Database\Eloquent\Collection {#1169
      #items: array:1 [
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          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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            "field_display_title" => "66"
            "field_folder" => "2"
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            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1150
              #items: array:1 [
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            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1146
              #items: []
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            "content" => Illuminate\Database\Eloquent\Collection {#1135
              #items: array:1 [
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                  #connection: "mysql"
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                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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№6 (с. 66)
Условие. №6 (с. 66)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 2, страница 66, номер 6, Условие

Упражнение 6

Найти уравнения общих касательных к графикам функции $y = x^2$ и функции $y = -x^2 + 4x - 6$.

Решение 2 (rus). №6 (с. 66)

Пусть искомая общая касательная задается уравнением $y = kx + b$. Эта прямая должна касаться графиков обеих функций: $f(x) = x^2$ и $g(x) = -x^2 + 4x - 6$.

Для нахождения уравнений касательных воспользуемся производными. Уравнение касательной к графику функции $h(x)$ в точке с абсциссой $x_0$ имеет вид $y = h(x_0) + h'(x_0)(x-x_0)$.

1. Рассмотрим касательную к графику функции $f(x) = x^2$.Пусть точка касания имеет абсциссу $x_1$.Найдем производную: $f'(x) = 2x$.В точке $x_1$ значение производной равно $f'(x_1) = 2x_1$, а значение функции $f(x_1) = x_1^2$.Уравнение касательной в этой точке:$y = f(x_1) + f'(x_1)(x - x_1) = x_1^2 + 2x_1(x - x_1) = x_1^2 + 2x_1 x - 2x_1^2$.$y = 2x_1 x - x_1^2$.Сравнивая это уравнение с $y = kx + b$, получаем:$k = 2x_1$$b = -x_1^2$

2. Рассмотрим касательную к графику функции $g(x) = -x^2 + 4x - 6$.Пусть точка касания имеет абсциссу $x_2$.Найдем производную: $g'(x) = -2x + 4$.В точке $x_2$ значение производной равно $g'(x_2) = -2x_2 + 4$, а значение функции $g(x_2) = -x_2^2 + 4x_2 - 6$.Уравнение касательной в этой точке:$y = g(x_2) + g'(x_2)(x - x_2) = (-x_2^2 + 4x_2 - 6) + (-2x_2 + 4)(x - x_2)$.Раскроем скобки и приведем подобные слагаемые:$y = (-2x_2 + 4)x + (-x_2^2 + 4x_2 - 6) - x_2(-2x_2 + 4)$$y = (-2x_2 + 4)x - x_2^2 + 4x_2 - 6 + 2x_2^2 - 4x_2$$y = (-2x_2 + 4)x + x_2^2 - 6$.Сравнивая это уравнение с $y = kx + b$, получаем:$k = -2x_2 + 4$$b = x_2^2 - 6$

3. Так как это одна и та же общая касательная, ее параметры $k$ и $b$ должны совпадать. Приравняем полученные выражения для $k$ и $b$:$ \begin{cases} 2x_1 = -2x_2 + 4 \\ -x_1^2 = x_2^2 - 6 \end{cases} $

Из первого уравнения системы выразим $x_1$:$x_1 = -x_2 + 2$.Подставим это выражение во второе уравнение системы:$-(-x_2 + 2)^2 = x_2^2 - 6$$-(x_2^2 - 4x_2 + 4) = x_2^2 - 6$$-x_2^2 + 4x_2 - 4 = x_2^2 - 6$$2x_2^2 - 4x_2 - 2 = 0$Разделим обе части уравнения на 2:$x_2^2 - 2x_2 - 1 = 0$.

Решим полученное квадратное уравнение для $x_2$:$D = (-2)^2 - 4 \cdot 1 \cdot (-1) = 4 + 4 = 8$$x_2 = \frac{2 \pm \sqrt{8}}{2} = \frac{2 \pm 2\sqrt{2}}{2} = 1 \pm \sqrt{2}$.

Таким образом, мы получили две абсциссы точек касания, что означает существование двух общих касательных. Найдем их уравнения.

Случай 1: $x_2 = 1 + \sqrt{2}$.Найдем параметры касательной $k$ и $b$:$k = -2x_2 + 4 = -2(1 + \sqrt{2}) + 4 = -2 - 2\sqrt{2} + 4 = 2 - 2\sqrt{2}$.$b = x_2^2 - 6 = (1 + \sqrt{2})^2 - 6 = (1 + 2\sqrt{2} + 2) - 6 = 3 + 2\sqrt{2} - 6 = -3 + 2\sqrt{2}$.Уравнение первой касательной: $y = (2 - 2\sqrt{2})x - 3 + 2\sqrt{2}$.

Случай 2: $x_2 = 1 - \sqrt{2}$.Найдем параметры касательной $k$ и $b$:$k = -2x_2 + 4 = -2(1 - \sqrt{2}) + 4 = -2 + 2\sqrt{2} + 4 = 2 + 2\sqrt{2}$.$b = x_2^2 - 6 = (1 - \sqrt{2})^2 - 6 = (1 - 2\sqrt{2} + 2) - 6 = 3 - 2\sqrt{2} - 6 = -3 - 2\sqrt{2}$.Уравнение второй касательной: $y = (2 + 2\sqrt{2})x - 3 - 2\sqrt{2}$.

Ответ: $y = (2 + 2\sqrt{2})x - 3 - 2\sqrt{2}$ и $y = (2 - 2\sqrt{2})x - 3 + 2\sqrt{2}$.

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