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Номер 5.7, страница 101 - гдз по геометрии 8 класс учебник Шыныбеков, Шыныбеков
Авторы: Шыныбеков А. Н., Шыныбеков Д. А., Жумабаев Р. Н.
Тип: Учебник
Издательство: Атамұра
Год издания: 2018 - 2026
ISBN: 978-601-331-161-6
Рекомендовано Министерством образования и науки Республики Казахстан
Популярные ГДЗ в 8 классе
Раздел 5*. Дополнительные задачи повышенной трудности - номер 5.7, страница 101.
App\Models\Task {#1030 // resources/views/models/task/default.blade.php #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122897 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-7" "field_display_title" => "5.7" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1037 #items: array:1 [ 0 => App\Models\Term {#1036 #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" => 26 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "номер" "field_cases" => array:6 [ "field_accusative_case" => "номер" "field_creative_case" => "номером" "field_dative_case" => "номеру" "field_genitive_case" => "номера" "field_nominative_case" => "номер" "field_prepositional_case" => "номере" ] "field_short_name" => "№" ] #original: array:6 [ "id" => 26 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "номер" "field_cases" => array:6 [ "field_accusative_case" => "номер" "field_creative_case" => "номером" "field_dative_case" => "номеру" "field_genitive_case" => "номера" "field_nominative_case" => "номер" "field_prepositional_case" => "номере" ] "field_short_name" => "№" ] #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_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1035 #items: [] #escapeWhenCastingToString: false } "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1071 #items: array:1 [ 0 => App\Models\Branch {#1034 #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" => 1122391 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Раздел 5*. Дополнительные задачи повышенной трудности" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1039 #items: [] #escapeWhenCastingToString: false } "field_page_start" => "101" "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 {#1038 #items: array:1 [ 0 => App\Models\Book {#1040 #connection: "mysql" #table: "books" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:50 [ "id" => 2592 "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 {#1041 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1043 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1045 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1047 …2} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1051 …2} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1052 …2} "field_country" => Illuminate\Database\Eloquent\Collection {#1054 …2} "field_city" => Illuminate\Database\Eloquent\Collection {#1056 …2} "field_series" => Illuminate\Database\Eloquent\Collection {#1058 …2} "field_umk" => Illuminate\Database\Eloquent\Collection {#1059 …2} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1060 …2} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1061 …2} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1062 …2} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1063 …2} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2018" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 8 класса общеобразовательных школ" "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "538" "field_priority" => "6" "field_default_folder" => "/geometrija_08/Shynybekov-u17/" "field_isbn" => "978-601-331-161-6" "field_cover" => array:1 [ …1] "field_cover_alts" => array:1 [ …1] "field_covers" => array:1 [ …1] "field_popular_book" => null "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1064 …2} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1065 …2} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1066 …2} "field_url" => "/8-klass/geometrija/shynybekov-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1067 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "breadcrumbs" => array:3 [ …3] ] #original: array:50 [ "id" => 2592 "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 {#1041 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1043 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1045 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1047 …2} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1051 …2} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1052 …2} "field_country" => Illuminate\Database\Eloquent\Collection {#1054 …2} "field_city" => Illuminate\Database\Eloquent\Collection {#1056 …2} "field_series" => Illuminate\Database\Eloquent\Collection {#1058 …2} "field_umk" => Illuminate\Database\Eloquent\Collection {#1059 …2} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1060 …2} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1061 …2} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1062 …2} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1063 …2} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2018" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 8 класса общеобразовательных школ" "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "538" "field_priority" => "6" "field_default_folder" => "/geometrija_08/Shynybekov-u17/" "field_isbn" => "978-601-331-161-6" "field_cover" => array:1 [ …1] "field_cover_alts" => array:1 [ …1] "field_covers" => array:1 [ …1] "field_popular_book" => null "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1064 …2} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1065 …2} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1066 …2} "field_url" => "/8-klass/geometrija/shynybekov-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1067 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "breadcrumbs" => array:3 [ …3] ] #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 {#1068 #items: [] #escapeWhenCastingToString: false } ] #original: array:24 [ "id" => 1122391 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Раздел 5*. Дополнительные задачи повышенной трудности" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1039} "field_page_start" => "101" "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 {#1038} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1068} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "parent_branches" => Illuminate\Database\Eloquent\Collection {#1069 #items: array:1 [ 0 => App\Models\Branch {#1034} ] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1081 #items: array:4 [ 0 => App\Models\Element {#1091 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:7 [ "id" => 1305472 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1100 #items: array:1 [ 0 => App\Models\Edition {#1092 #connection: "mysql" #table: "editions" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 5006 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Учебник rus" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1094 …2} "field_content_type" => "free" "field_content_mode" => "text, image" "field_page_content_mode" => "image" "field_content_text_checked" => null "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "pasha" "field_edition_type" => "statement" "field_root_dir" => "0rus-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1095 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1096 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1097 …2} "field_content_source" => null ] #original: array:21 [ "id" => 5006 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Учебник rus" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1094 …2} "field_content_type" => "free" "field_content_mode" => "text, image" "field_page_content_mode" => "image" "field_content_text_checked" => null "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "pasha" "field_edition_type" => "statement" "field_root_dir" => "0rus-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1095 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1096 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1097 …2} "field_content_source" => 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 } "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "text" => "<p><strong>5.7.</strong> Точка $P$ лежит на стороне $CD$ квадрата $ABCD$, а $AK(K \in BC)$ – биссектриса угла $BAP$. Докажите, что $AP = BK + DP$.</p>" "img" => array:1 [ 0 => array:5 [ "name" => "7-1.jpg" "alt" => null "width" => "1721" "height" => 189 "path" => "/media/geometrija_08/Shynybekov-u17/0rus-5/7-1.webp?ts=1753776534" ] ] ] #original: array:7 [ "id" => 1305472 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1100} "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "text" => "<p><strong>5.7.</strong> Точка $P$ лежит на стороне $CD$ квадрата $ABCD$, а $AK(K \in BC)$ – биссектриса угла $BAP$. Докажите, что $AP = BK + DP$.</p>" "img" => array:1 [ 0 => array:5 [ "name" => "7-1.jpg" "alt" => null "width" => "1721" "height" => 189 "path" => "/media/geometrija_08/Shynybekov-u17/0rus-5/7-1.webp?ts=1753776534" ] ] ] #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\Element {#1098 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1305848 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1108 #items: array:1 [ 0 => App\Models\Edition {#1099 #connection: "mysql" #table: "editions" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 5007 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Учебник kz" "field_order" => "2" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1102 …2} "field_content_type" => "free" "field_content_mode" => "image" "field_page_content_mode" => "image" "field_content_text_checked" => "0" "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "pasha" "field_edition_type" => "statement" "field_root_dir" => "0kz-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1103 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1104 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1105 …2} "field_content_source" => null ] #original: array:21 [ "id" => 5007 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Учебник kz" "field_order" => "2" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1102 …2} "field_content_type" => "free" "field_content_mode" => "image" "field_page_content_mode" => "image" "field_content_text_checked" => "0" "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "pasha" "field_edition_type" => "statement" "field_root_dir" => "0kz-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1103 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1104 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1105 …2} "field_content_source" => 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 } "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "img" => array:1 [ 0 => array:5 [ "name" => "7-1.jpg" "alt" => null "width" => "1764" "height" => 199 "path" => "/media/geometrija_08/Shynybekov-u17/0kz-5/7-1.webp?ts=1753776557" ] ] ] #original: array:6 [ "id" => 1305848 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1108} "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "img" => array:1 [ 0 => array:5 [ "name" => "7-1.jpg" "alt" => null "width" => "1764" "height" => 199 "path" => "/media/geometrija_08/Shynybekov-u17/0kz-5/7-1.webp?ts=1753776557" ] ] ] #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\Element {#1106 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1306288 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1116 #items: array:1 [ 0 => App\Models\Edition {#1107 #connection: "mysql" #table: "editions" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 5008 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение" "field_order" => "3" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1110 …2} "field_content_type" => "free" "field_content_mode" => "image" "field_page_content_mode" => "" "field_content_text_checked" => "0" "field_page_content_text_checked" => "0" "field_solution_author" => "Неизвестный" "field_moderator" => "pasha" "field_edition_type" => "solution" "field_root_dir" => "1-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1111 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1112 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1113 …2} "field_content_source" => null ] #original: array:21 [ "id" => 5008 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение" "field_order" => "3" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1110 …2} "field_content_type" => "free" "field_content_mode" => "image" "field_page_content_mode" => "" "field_content_text_checked" => "0" "field_page_content_text_checked" => "0" "field_solution_author" => "Неизвестный" "field_moderator" => "pasha" "field_edition_type" => "solution" "field_root_dir" => "1-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1111 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1112 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1113 …2} "field_content_source" => 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 } "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "img" => array:1 [ 0 => array:5 [ "name" => "7-1.jpg" "alt" => null "width" => "1378" "height" => 432 "path" => "/media/geometrija_08/Shynybekov-u17/1-5/7-1.webp?ts=1753776621" ] ] ] #original: array:6 [ "id" => 1306288 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1116} "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "img" => array:1 [ 0 => array:5 [ "name" => "7-1.jpg" "alt" => null "width" => "1378" "height" => 432 "path" => "/media/geometrija_08/Shynybekov-u17/1-5/7-1.webp?ts=1753776621" ] ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 3 => App\Models\Element {#1114 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1481121 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1124 #items: array:1 [ 0 => App\Models\Edition {#1115 #connection: "mysql" #table: "editions" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 5435 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение 2 rus" "field_order" => "4" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1118 …2} "field_content_type" => "free" "field_content_mode" => "text" "field_page_content_mode" => "" "field_content_text_checked" => null "field_page_content_text_checked" => "0" "field_solution_author" => "Gemini 2.5 Pro" "field_moderator" => "tolik" "field_edition_type" => "solution" "field_root_dir" => "2-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1119 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1120 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1121 …2} "field_content_source" => null ] #original: array:21 [ "id" => 5435 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение 2 rus" "field_order" => "4" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1118 …2} "field_content_type" => "free" "field_content_mode" => "text" "field_page_content_mode" => "" "field_content_text_checked" => null "field_page_content_text_checked" => "0" "field_solution_author" => "Gemini 2.5 Pro" "field_moderator" => "tolik" "field_edition_type" => "solution" "field_root_dir" => "2-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1119 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1120 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1121 …2} "field_content_source" => 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 } "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "text" => "<p>Для решения задачи воспользуемся координатным методом. Поместим квадрат $ABCD$ в систему координат так, чтобы вершина $A$ находилась в начале координат $(0,0)$, вершина $B$ на оси $Ox$, а вершина $D$ на оси $Oy$. Пусть сторона квадрата равна $a$.</p><p>Тогда координаты вершин будут следующими:</p><ul><li>$A = (0, 0)$</li><li>$B = (a, 0)$</li><li>$C = (a, a)$</li><li>$D = (0, a)$</li></ul><p>Точка $P$ лежит на стороне $CD$. Сторона $CD$ представляет собой отрезок, где $y=a$, а $x$ меняется от $0$ до $a$. Таким образом, координаты точки $P$ можно записать как $(p, a)$, где $0 \le p \le a$.</p><p>Точка $K$ лежит на стороне $BC$. Сторона $BC$ представляет собой отрезок, где $x=a$, а $y$ меняется от $0$ до $a$. Таким образом, координаты точки $K$ можно записать как $(a, k)$, где $0 \le k \le a$.</p><p>Теперь найдем длины отрезков, упомянутых в условии задачи:</p><ul><li>Длина отрезка $AP$ вычисляется по формуле расстояния между точками $A(0,0)$ и $P(p,a)$: $AP = \sqrt{(p-0)^2 + (a-0)^2} = \sqrt{p^2+a^2}$</li><li>Длина отрезка $DP$ вычисляется по формуле расстояния между точками $D(0,a)$ и $P(p,a)$: $DP = \sqrt{(p-0)^2 + (a-a)^2} = \sqrt{p^2} = p$ (поскольку $p \ge 0$)</li><li>Длина отрезка $BK$ вычисляется по формуле расстояния между точками $B(a,0)$ и $K(a,k)$: $BK = \sqrt{(a-a)^2 + (k-0)^2} = \sqrt{k^2} = k$ (поскольку $k \ge 0$)</li></ul><p>Нам необходимо доказать, что $AP = BK + DP$. Подставляя найденные выражения для длин, получаем задачу доказать следующее равенство:</p><p>$\sqrt{p^2+a^2} = k + p$</p><p>Теперь используем условие, что $AK$ — биссектриса угла $BAP$. В векторной форме это означает, что вектор $\vec{AK}$ сонаправлен с вектором, являющимся суммой единичных векторов $\vec{AB}$ и $\vec{AP}$.</p><p>Найдем эти векторы:</p><ul><li>$\vec{AB} = (a-0, 0-0) = (a, 0)$</li><li>$\vec{AP} = (p-0, a-0) = (p, a)$</li><li>$\vec{AK} = (a-0, k-0) = (a, k)$</li></ul><p>Найдем длины векторов $\vec{AB}$ и $\vec{AP}$:</p><ul><li>$|\vec{AB}| = a$</li><li>$|\vec{AP}| = \sqrt{p^2+a^2}$</li></ul><p>Единичные векторы:</p><ul><li>$\vec{e}_{AB} = \frac{\vec{AB}}{|\vec{AB}|} = \frac{(a,0)}{a} = (1, 0)$</li><li>$\vec{e}_{AP} = \frac{\vec{AP}}{|\vec{AP}|} = \frac{(p,a)}{\sqrt{p^2+a^2}}$</li></ul><p>Направляющий вектор биссектрисы угла $BAP$ есть $\vec{u} = \vec{e}_{AB} + \vec{e}_{AP}$. Вектор $\vec{AK}$ должен быть ему коллинеарен, то есть $\vec{AK} = c \cdot \vec{u}$ для некоторого положительного скаляра $c$.</p><p>$(a, k) = c \left( (1, 0) + \frac{(p,a)}{\sqrt{p^2+a^2}} \right) = c \left( 1 + \frac{p}{\sqrt{p^2+a^2}}, \frac{a}{\sqrt{p^2+a^2}} \right)$</p><p>Приравнивая компоненты векторов, получаем систему из двух уравнений:</p><ol><li>$a = c \left( 1 + \frac{p}{\sqrt{p^2+a^2}} \right)$</li><li>$k = c \cdot \frac{a}{\sqrt{p^2+a^2}}$</li></ol><p>Из второго уравнения выразим $c$:</p><p>$c = \frac{k \sqrt{p^2+a^2}}{a}$</p><p>Подставим это выражение для $c$ в первое уравнение:</p><p>$a = \frac{k \sqrt{p^2+a^2}}{a} \left( 1 + \frac{p}{\sqrt{p^2+a^2}} \right)$</p><p>Раскроем скобки в правой части:</p><p>$a = \frac{k}{a} \left( \sqrt{p^2+a^2} + p \right)$</p><p>Умножим обе части на $a$:</p><p>$a^2 = k(\sqrt{p^2+a^2} + p)$</p><p>Мы получили соотношение между $p$, $k$ и $a$, которое следует из условия о биссектрисе. Теперь покажем, что это соотношение эквивалентно тому, что мы хотим доказать, а именно $\sqrt{p^2+a^2} = p+k$.</p><p>Возведем доказываемое равенство в квадрат:</p><p>$(\sqrt{p^2+a^2})^2 = (p+k)^2$</p><p>$p^2+a^2 = p^2+2pk+k^2$</p><p>$a^2 = 2pk+k^2$</p><p>Теперь вернемся к соотношению, полученному из условия о биссектрисе: $a^2 = k(\sqrt{p^2+a^2} + p)$. Подставим в него $a^2 = 2pk+k^2$:</p><p>$2pk+k^2 = k(\sqrt{p^2+a^2} + p)$</p><p>Поскольку точка $K$ может не совпадать с $B$, то $k \ne 0$, и мы можем разделить обе части на $k$:</p><p>$2p+k = \sqrt{p^2+a^2} + p$</p><p>$p+k = \sqrt{p^2+a^2}$</p><p>Это и есть то равенство, которое мы хотели доказать.</p><p>Таким образом, мы показали, что условие о биссектрисе приводит к равенству, которое эквивалентно доказываемому утверждению. Следовательно, утверждение задачи верно.</p><p><strong>Ответ:</strong> Доказано, что $AP = BK + DP$.</p>" ] #original: array:6 [ "id" => 1481121 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1124} "task" => array:2 [ "refs" => "1122897" "type" => "task" ] "text" => "<p>Для решения задачи воспользуемся координатным методом. Поместим квадрат $ABCD$ в систему координат так, чтобы вершина $A$ находилась в начале координат $(0,0)$, вершина $B$ на оси $Ox$, а вершина $D$ на оси $Oy$. Пусть сторона квадрата равна $a$.</p><p>Тогда координаты вершин будут следующими:</p><ul><li>$A = (0, 0)$</li><li>$B = (a, 0)$</li><li>$C = (a, a)$</li><li>$D = (0, a)$</li></ul><p>Точка $P$ лежит на стороне $CD$. Сторона $CD$ представляет собой отрезок, где $y=a$, а $x$ меняется от $0$ до $a$. Таким образом, координаты точки $P$ можно записать как $(p, a)$, где $0 \le p \le a$.</p><p>Точка $K$ лежит на стороне $BC$. Сторона $BC$ представляет собой отрезок, где $x=a$, а $y$ меняется от $0$ до $a$. Таким образом, координаты точки $K$ можно записать как $(a, k)$, где $0 \le k \le a$.</p><p>Теперь найдем длины отрезков, упомянутых в условии задачи:</p><ul><li>Длина отрезка $AP$ вычисляется по формуле расстояния между точками $A(0,0)$ и $P(p,a)$: $AP = \sqrt{(p-0)^2 + (a-0)^2} = \sqrt{p^2+a^2}$</li><li>Длина отрезка $DP$ вычисляется по формуле расстояния между точками $D(0,a)$ и $P(p,a)$: $DP = \sqrt{(p-0)^2 + (a-a)^2} = \sqrt{p^2} = p$ (поскольку $p \ge 0$)</li><li>Длина отрезка $BK$ вычисляется по формуле расстояния между точками $B(a,0)$ и $K(a,k)$: $BK = \sqrt{(a-a)^2 + (k-0)^2} = \sqrt{k^2} = k$ (поскольку $k \ge 0$)</li></ul><p>Нам необходимо доказать, что $AP = BK + DP$. Подставляя найденные выражения для длин, получаем задачу доказать следующее равенство:</p><p>$\sqrt{p^2+a^2} = k + p$</p><p>Теперь используем условие, что $AK$ — биссектриса угла $BAP$. В векторной форме это означает, что вектор $\vec{AK}$ сонаправлен с вектором, являющимся суммой единичных векторов $\vec{AB}$ и $\vec{AP}$.</p><p>Найдем эти векторы:</p><ul><li>$\vec{AB} = (a-0, 0-0) = (a, 0)$</li><li>$\vec{AP} = (p-0, a-0) = (p, a)$</li><li>$\vec{AK} = (a-0, k-0) = (a, k)$</li></ul><p>Найдем длины векторов $\vec{AB}$ и $\vec{AP}$:</p><ul><li>$|\vec{AB}| = a$</li><li>$|\vec{AP}| = \sqrt{p^2+a^2}$</li></ul><p>Единичные векторы:</p><ul><li>$\vec{e}_{AB} = \frac{\vec{AB}}{|\vec{AB}|} = \frac{(a,0)}{a} = (1, 0)$</li><li>$\vec{e}_{AP} = \frac{\vec{AP}}{|\vec{AP}|} = \frac{(p,a)}{\sqrt{p^2+a^2}}$</li></ul><p>Направляющий вектор биссектрисы угла $BAP$ есть $\vec{u} = \vec{e}_{AB} + \vec{e}_{AP}$. Вектор $\vec{AK}$ должен быть ему коллинеарен, то есть $\vec{AK} = c \cdot \vec{u}$ для некоторого положительного скаляра $c$.</p><p>$(a, k) = c \left( (1, 0) + \frac{(p,a)}{\sqrt{p^2+a^2}} \right) = c \left( 1 + \frac{p}{\sqrt{p^2+a^2}}, \frac{a}{\sqrt{p^2+a^2}} \right)$</p><p>Приравнивая компоненты векторов, получаем систему из двух уравнений:</p><ol><li>$a = c \left( 1 + \frac{p}{\sqrt{p^2+a^2}} \right)$</li><li>$k = c \cdot \frac{a}{\sqrt{p^2+a^2}}$</li></ol><p>Из второго уравнения выразим $c$:</p><p>$c = \frac{k \sqrt{p^2+a^2}}{a}$</p><p>Подставим это выражение для $c$ в первое уравнение:</p><p>$a = \frac{k \sqrt{p^2+a^2}}{a} \left( 1 + \frac{p}{\sqrt{p^2+a^2}} \right)$</p><p>Раскроем скобки в правой части:</p><p>$a = \frac{k}{a} \left( \sqrt{p^2+a^2} + p \right)$</p><p>Умножим обе части на $a$:</p><p>$a^2 = k(\sqrt{p^2+a^2} + p)$</p><p>Мы получили соотношение между $p$, $k$ и $a$, которое следует из условия о биссектрисе. Теперь покажем, что это соотношение эквивалентно тому, что мы хотим доказать, а именно $\sqrt{p^2+a^2} = p+k$.</p><p>Возведем доказываемое равенство в квадрат:</p><p>$(\sqrt{p^2+a^2})^2 = (p+k)^2$</p><p>$p^2+a^2 = p^2+2pk+k^2$</p><p>$a^2 = 2pk+k^2$</p><p>Теперь вернемся к соотношению, полученному из условия о биссектрисе: $a^2 = k(\sqrt{p^2+a^2} + p)$. Подставим в него $a^2 = 2pk+k^2$:</p><p>$2pk+k^2 = k(\sqrt{p^2+a^2} + p)$</p><p>Поскольку точка $K$ может не совпадать с $B$, то $k \ne 0$, и мы можем разделить обе части на $k$:</p><p>$2p+k = \sqrt{p^2+a^2} + p$</p><p>$p+k = \sqrt{p^2+a^2}$</p><p>Это и есть то равенство, которое мы хотели доказать.</p><p>Таким образом, мы показали, что условие о биссектрисе приводит к равенству, которое эквивалентно доказываемому утверждению. Следовательно, утверждение задачи верно.</p><p><strong>Ответ:</strong> Доказано, что $AP = BK + DP$.</p>" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1122898" "type" => "task" ] "previous" => array:2 [ "refs" => "1122896" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#1135 #items: array:1 [ 0 => App\Models\Book {#1089 #connection: "mysql" #table: "books" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:50 [ "id" => 2592 "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 {#1073 #items: array:1 [ 0 => App\Models\Term {#1070 #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" => 6477 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Геометрия" "field_abbreviated_name" => null "field_cases" => array:6 [ …6] "field_foreign_lang_name" => null "field_short_name" => null "field_subject_type" => "technical_subject" "field_translit" => "geometrija" ] #original: array:10 [ "id" => 6477 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Геометрия" "field_abbreviated_name" => null "field_cases" => array:6 [ …6] "field_foreign_lang_name" => null "field_short_name" => null "field_subject_type" => "technical_subject" "field_translit" => "geometrija" ] #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_class" => Illuminate\Database\Eloquent\Collection {#1072 #items: array:1 [ 0 => App\Models\Term {#1078 #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" => 5457 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "8" "field_cases" => array:6 [ …6] "field_translit" => "vosmoj" ] #original: array:6 [ "id" => 5457 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "8" "field_cases" => array:6 [ …6] "field_translit" => "vosmoj" ] #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_publisher" => Illuminate\Database\Eloquent\Collection {#1077 #items: array:1 [ 0 => App\Models\Term {#1076 #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" => 6991 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Атамұра" "field_cases" => array:6 [ …6] "field_translit" => "atamu'ra" ] #original: array:6 [ "id" => 6991 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Атамұра" "field_cases" => array:6 [ …6] "field_translit" => "atamu'ra" ] #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 {#1074 #items: array:3 [ 0 => App\Models\Term {#1075 #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" => 6992 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Шыныбеков" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Абдухали" "field_patronymic" => "Насырович" "field_surname_rp" => null ] #original: array:12 [ "id" => 6992 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Шыныбеков" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Абдухали" "field_patronymic" => "Насырович" "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 {#1080 #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" => 6993 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Шыныбеков" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Данияр" "field_patronymic" => "Абдухалиевич" "field_surname_rp" => null ] #original: array:12 [ "id" => 6993 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Шыныбеков" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Данияр" "field_patronymic" => "Абдухалиевич" "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 {#1079 #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" => 7001 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Жумабаев" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Ринат" "field_patronymic" => "Нурланович" "field_surname_rp" => null ] #original: array:12 [ "id" => 7001 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Жумабаев" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Ринат" "field_patronymic" => "Нурланович" "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 {#1087 #items: [] #escapeWhenCastingToString: false } "field_book_type" => Illuminate\Database\Eloquent\Collection {#1086 #items: array:1 [ 0 => App\Models\Term {#1088 #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 {#1084 #items: array:1 [ 0 => App\Models\Term {#1082 #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 {#1085 #items: array:1 [ 0 => App\Models\Term {#1083 #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 {#1122 #items: [] #escapeWhenCastingToString: false } "field_umk" => Illuminate\Database\Eloquent\Collection {#1123 #items: [] #escapeWhenCastingToString: false } "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1125 #items: [] #escapeWhenCastingToString: false } "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1126 #items: [] #escapeWhenCastingToString: false } "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1127 #items: [] #escapeWhenCastingToString: false } "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1128 #items: [] #escapeWhenCastingToString: false } "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2018" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 8 класса общеобразовательных школ" "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "538" "field_priority" => "6" "field_default_folder" => "/geometrija_08/Shynybekov-u17/" "field_isbn" => "978-601-331-161-6" "field_cover" => array:1 [ 0 => "/media/geometrija_08/Shynybekov-u17/covers/cover1.webp?ts=1753258124" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/geometrija_08/Shynybekov-u17/covers/cover1.webp?ts=1753258124" "alt" => "" "width" => "1632" "height" => "2472" ] ] "field_popular_book" => null "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1129 #items: [] #escapeWhenCastingToString: false } "field_new_book" => Illuminate\Database\Eloquent\Collection {#1130 #items: [] #escapeWhenCastingToString: false } "field_old_book" => Illuminate\Database\Eloquent\Collection {#1131 #items: [] #escapeWhenCastingToString: false } "field_url" => "/8-klass/geometrija/shynybekov-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1132 #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" => 379 "subject" => 543 "class_subject" => 390 ] ] #original: array:50 [ "id" => 2592 "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 {#1073} "field_class" => Illuminate\Database\Eloquent\Collection {#1072} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1077} "field_author" => Illuminate\Database\Eloquent\Collection {#1074} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1087} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1086} "field_country" => Illuminate\Database\Eloquent\Collection {#1084} "field_city" => Illuminate\Database\Eloquent\Collection {#1085} "field_series" => Illuminate\Database\Eloquent\Collection {#1122} "field_umk" => Illuminate\Database\Eloquent\Collection {#1123} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1125} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1126} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1127} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1128} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2018" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 8 класса общеобразовательных школ" "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "538" "field_priority" => "6" "field_default_folder" => "/geometrija_08/Shynybekov-u17/" "field_isbn" => "978-601-331-161-6" "field_cover" => array:1 [ 0 => "/media/geometrija_08/Shynybekov-u17/covers/cover1.webp?ts=1753258124" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/geometrija_08/Shynybekov-u17/covers/cover1.webp?ts=1753258124" "alt" => "" "width" => "1632" "height" => "2472" ] ] "field_popular_book" => null "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1129} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1130} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1131} "field_url" => "/8-klass/geometrija/shynybekov-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1132} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "breadcrumbs" => array:3 [ "class" => 379 "subject" => 543 "class_subject" => 390 ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "page" => Illuminate\Database\Eloquent\Collection {#1140 #items: array:1 [ 0 => App\Models\BookPage {#1139 #connection: "mysql" #table: "book_pages" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 1114303 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/page-101" "field_display_title" => "101" "field_folder" => "1" "field_image_name" => "101" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1141 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1142 #items: array:1 [ 0 => App\Models\Book {#1089} ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#1143 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1145 #items: array:2 [ 0 => App\Models\Element {#1154 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1290471 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1155 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #original: array:6 [ "id" => 1290471 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1155 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #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\Element {#1156 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1290488 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1157 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #original: array:6 [ "id" => 1290488 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1157 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1114304" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1114302" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#1252 #items: array:14 [ 0 => App\Models\Task {#1272 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122891 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-1" "field_display_title" => "5.1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1273 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1274 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1275 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1276 …2} "content" => Illuminate\Database\Eloquent\Collection {#1278 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1287 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1122891 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-1" "field_display_title" => "5.1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1273 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1274 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1275 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1276 …2} "content" => Illuminate\Database\Eloquent\Collection {#1278 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1287 …2} "page" => array:2 [ …2] ] #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\Task {#1279 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122892 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-2" "field_display_title" => "5.2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1277 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1285 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1284 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1286 …2} "content" => Illuminate\Database\Eloquent\Collection {#1280 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1303 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1122892 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-2" "field_display_title" => "5.2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1277 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1285 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1284 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1286 …2} "content" => Illuminate\Database\Eloquent\Collection {#1280 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1303 …2} "page" => array:2 [ …2] ] #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\Task {#1283 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122893 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-3" "field_display_title" => "5.3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1282 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1301 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1300 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1302 …2} "content" => Illuminate\Database\Eloquent\Collection {#1281 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1319 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1122893 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-3" "field_display_title" => "5.3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1282 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1301 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1300 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1302 …2} "content" => Illuminate\Database\Eloquent\Collection {#1281 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1319 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 3 => App\Models\Task {#1299 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122894 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-4" "field_display_title" => "5.4" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1298 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1317 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1316 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1318 …2} "content" => Illuminate\Database\Eloquent\Collection {#1297 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1335 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1122894 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-4" "field_display_title" => "5.4" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1298 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1317 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1316 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1318 …2} "content" => Illuminate\Database\Eloquent\Collection {#1297 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1335 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 4 => App\Models\Task {#1315 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122895 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-5" "field_display_title" => "5.5" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1314 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1333 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1332 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1334 …2} "content" => Illuminate\Database\Eloquent\Collection {#1313 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1351 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1122895 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-5" "field_display_title" => "5.5" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1314 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1333 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1332 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1334 …2} "content" => Illuminate\Database\Eloquent\Collection {#1313 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1351 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 5 => App\Models\Task {#1331 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122896 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-6" "field_display_title" => "5.6" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1330 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1349 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1348 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1350 …2} "content" => Illuminate\Database\Eloquent\Collection {#1329 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1367 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1122896 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-6" "field_display_title" => "5.6" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1330 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1349 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1348 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1350 …2} "content" => Illuminate\Database\Eloquent\Collection {#1329 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1367 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 6 => App\Models\Task {#1347 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122897 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-7" "field_display_title" => "5.7" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1346 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1365 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1364 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1366 …2} "content" => Illuminate\Database\Eloquent\Collection {#1362 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1345 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1122897 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-7" "field_display_title" => "5.7" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1346 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1365 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1364 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1366 …2} "content" => Illuminate\Database\Eloquent\Collection {#1362 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1345 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 7 => App\Models\Task {#1363 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1122898 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-8" "field_display_title" => "5.8" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1361 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1377 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1378 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1379 …2} "content" => Illuminate\Database\Eloquent\Collection {#1381 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1390 …2} "page" => array:2 [ …2] ] #original: array:24 [ …24] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ …1] } 8 => App\Models\Task {#1382 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ …24] #original: array:24 [ …24] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ …1] } 9 => App\Models\Task {#1386 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ …24] #original: array:24 [ …24] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ …1] } 10 => App\Models\Task {#1401 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ …24] #original: array:24 [ …24] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ …1] } 11 => App\Models\Task {#1416 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ …24] #original: array:24 [ …24] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ …1] } 12 => App\Models\Task {#1427 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ …24] #original: array:24 [ …24] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ …1] } 13 => App\Models\Task {#1449 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ …24] #original: array:24 [ …24] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ …1] } ] #escapeWhenCastingToString: false } ] #original: array:21 [ "id" => 1114303 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/page-101" "field_display_title" => "101" "field_folder" => "1" "field_image_name" => "101" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1141} "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1142} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#1143} "content" => Illuminate\Database\Eloquent\Collection {#1145} "next" => array:2 [ "refs" => "1114304" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1114302" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#1252} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } ] #original: array:24 [ "id" => 1122897 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "101" "field_page_end" => null "field_url" => "/8-klass/geometrija/shynybekov-uchebnik/5-7" "field_display_title" => "5.7" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1037} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" 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№5.7 (с. 101)
Учебник rus. №5.7 (с. 101)
скриншот условия
5.7. Точка $P$ лежит на стороне $CD$ квадрата $ABCD$, а $AK(K \in BC)$ – биссектриса угла $BAP$. Докажите, что $AP = BK + DP$.
Учебник kz. №5.7 (с. 101)
Решение. №5.7 (с. 101)
Решение 2 rus. №5.7 (с. 101)
Для решения задачи воспользуемся координатным методом. Поместим квадрат $ABCD$ в систему координат так, чтобы вершина $A$ находилась в начале координат $(0,0)$, вершина $B$ на оси $Ox$, а вершина $D$ на оси $Oy$. Пусть сторона квадрата равна $a$.
Тогда координаты вершин будут следующими:
- $A = (0, 0)$
- $B = (a, 0)$
- $C = (a, a)$
- $D = (0, a)$
Точка $P$ лежит на стороне $CD$. Сторона $CD$ представляет собой отрезок, где $y=a$, а $x$ меняется от $0$ до $a$. Таким образом, координаты точки $P$ можно записать как $(p, a)$, где $0 \le p \le a$.
Точка $K$ лежит на стороне $BC$. Сторона $BC$ представляет собой отрезок, где $x=a$, а $y$ меняется от $0$ до $a$. Таким образом, координаты точки $K$ можно записать как $(a, k)$, где $0 \le k \le a$.
Теперь найдем длины отрезков, упомянутых в условии задачи:
- Длина отрезка $AP$ вычисляется по формуле расстояния между точками $A(0,0)$ и $P(p,a)$: $AP = \sqrt{(p-0)^2 + (a-0)^2} = \sqrt{p^2+a^2}$
- Длина отрезка $DP$ вычисляется по формуле расстояния между точками $D(0,a)$ и $P(p,a)$: $DP = \sqrt{(p-0)^2 + (a-a)^2} = \sqrt{p^2} = p$ (поскольку $p \ge 0$)
- Длина отрезка $BK$ вычисляется по формуле расстояния между точками $B(a,0)$ и $K(a,k)$: $BK = \sqrt{(a-a)^2 + (k-0)^2} = \sqrt{k^2} = k$ (поскольку $k \ge 0$)
Нам необходимо доказать, что $AP = BK + DP$. Подставляя найденные выражения для длин, получаем задачу доказать следующее равенство:
$\sqrt{p^2+a^2} = k + p$
Теперь используем условие, что $AK$ — биссектриса угла $BAP$. В векторной форме это означает, что вектор $\vec{AK}$ сонаправлен с вектором, являющимся суммой единичных векторов $\vec{AB}$ и $\vec{AP}$.
Найдем эти векторы:
- $\vec{AB} = (a-0, 0-0) = (a, 0)$
- $\vec{AP} = (p-0, a-0) = (p, a)$
- $\vec{AK} = (a-0, k-0) = (a, k)$
Найдем длины векторов $\vec{AB}$ и $\vec{AP}$:
- $|\vec{AB}| = a$
- $|\vec{AP}| = \sqrt{p^2+a^2}$
Единичные векторы:
- $\vec{e}_{AB} = \frac{\vec{AB}}{|\vec{AB}|} = \frac{(a,0)}{a} = (1, 0)$
- $\vec{e}_{AP} = \frac{\vec{AP}}{|\vec{AP}|} = \frac{(p,a)}{\sqrt{p^2+a^2}}$
Направляющий вектор биссектрисы угла $BAP$ есть $\vec{u} = \vec{e}_{AB} + \vec{e}_{AP}$. Вектор $\vec{AK}$ должен быть ему коллинеарен, то есть $\vec{AK} = c \cdot \vec{u}$ для некоторого положительного скаляра $c$.
$(a, k) = c \left( (1, 0) + \frac{(p,a)}{\sqrt{p^2+a^2}} \right) = c \left( 1 + \frac{p}{\sqrt{p^2+a^2}}, \frac{a}{\sqrt{p^2+a^2}} \right)$
Приравнивая компоненты векторов, получаем систему из двух уравнений:
- $a = c \left( 1 + \frac{p}{\sqrt{p^2+a^2}} \right)$
- $k = c \cdot \frac{a}{\sqrt{p^2+a^2}}$
Из второго уравнения выразим $c$:
$c = \frac{k \sqrt{p^2+a^2}}{a}$
Подставим это выражение для $c$ в первое уравнение:
$a = \frac{k \sqrt{p^2+a^2}}{a} \left( 1 + \frac{p}{\sqrt{p^2+a^2}} \right)$
Раскроем скобки в правой части:
$a = \frac{k}{a} \left( \sqrt{p^2+a^2} + p \right)$
Умножим обе части на $a$:
$a^2 = k(\sqrt{p^2+a^2} + p)$
Мы получили соотношение между $p$, $k$ и $a$, которое следует из условия о биссектрисе. Теперь покажем, что это соотношение эквивалентно тому, что мы хотим доказать, а именно $\sqrt{p^2+a^2} = p+k$.
Возведем доказываемое равенство в квадрат:
$(\sqrt{p^2+a^2})^2 = (p+k)^2$
$p^2+a^2 = p^2+2pk+k^2$
$a^2 = 2pk+k^2$
Теперь вернемся к соотношению, полученному из условия о биссектрисе: $a^2 = k(\sqrt{p^2+a^2} + p)$. Подставим в него $a^2 = 2pk+k^2$:
$2pk+k^2 = k(\sqrt{p^2+a^2} + p)$
Поскольку точка $K$ может не совпадать с $B$, то $k \ne 0$, и мы можем разделить обе части на $k$:
$2p+k = \sqrt{p^2+a^2} + p$
$p+k = \sqrt{p^2+a^2}$
Это и есть то равенство, которое мы хотели доказать.
Таким образом, мы показали, что условие о биссектрисе приводит к равенству, которое эквивалентно доказываемому утверждению. Следовательно, утверждение задачи верно.
Ответ: Доказано, что $AP = BK + DP$.
Другие задания:
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