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Номер 21, страница 124 - гдз по алгебре 10 класс учебник Абылкасымова, Жумагулова
Авторы: Абылкасымова А. Е., Жумагулова З. А.
Тип: Учебник
Издательство: Мектеп
Год издания: 2019 - 2026
ISBN: 978-601-07-1142-6
Утверждено Министерством образования и науки Республики Казахстан
Популярные ГДЗ в 10 классе
Глава 6. Применение производной. Проверь себя! - номер 21, страница 124.
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" => 1113997 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-21" "field_display_title" => "21" "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" => 1113580 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Применение производной" "field_branch_order" => "6" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1039 #items: array:1 [ 0 => App\Models\Term {#1038 #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: [] #casts: [] #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" => "106" 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Illuminate\Database\Eloquent\Collection {#1042 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1044 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1046 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1048 …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" => 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Illuminate\Database\Eloquent\Collection {#1066 …2} "field_url" => "/10-klass/algebra/abylkasymova-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" => 4293 "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 {#1042 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1044 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1046 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1048 …2} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1051 …2} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1052 …2} "field_country" => 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образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "514" "field_priority" => "2" "field_default_folder" => "/algebra_10/Abylkasymova-u/" "field_isbn" => "978-601-07-1142-6" "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" => "/10-klass/algebra/abylkasymova-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" => 1113580 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Применение производной" "field_branch_order" => "6" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1039} "field_page_start" => "106" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1040} "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 {#1138 #items: array:2 [ 0 => App\Models\Branch {#1069 #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" => 1113580 "created_at" => "2026-04-10 13:58:26" "updated_at" => null 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#relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_page_start" => "106" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1073 #items: array:1 [ 0 => App\Models\Book {#1074 #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" => 4293 "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 {#1075 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1077 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1079 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1081 …2} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1084 …2} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1085 …2} "field_country" => Illuminate\Database\Eloquent\Collection {#1087 …2} "field_city" => Illuminate\Database\Eloquent\Collection {#1089 …2} "field_series" => Illuminate\Database\Eloquent\Collection {#1091 …2} "field_umk" => Illuminate\Database\Eloquent\Collection {#1092 …2} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1093 …2} "field_standart_of_education" => 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=> null "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1097 …2} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1098 …2} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1099 …2} "field_url" => "/10-klass/algebra/abylkasymova-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1100 …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" => 4293 "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 {#1075 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1077 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1079 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1081 …2} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1084 …2} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1085 …2} "field_country" => Illuminate\Database\Eloquent\Collection {#1087 …2} "field_city" => Illuminate\Database\Eloquent\Collection {#1089 …2} "field_series" => Illuminate\Database\Eloquent\Collection {#1091 …2} "field_umk" => Illuminate\Database\Eloquent\Collection {#1092 …2} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1093 …2} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1094 …2} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1095 …2} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1096 …2} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2019" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 10 класса общественно-гуманитарного направления общеобразовательных школ" "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "514" "field_priority" => "2" "field_default_folder" => "/algebra_10/Abylkasymova-u/" "field_isbn" => "978-601-07-1142-6" "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 {#1097 …2} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1098 …2} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1099 …2} "field_url" => "/10-klass/algebra/abylkasymova-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1100 …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 {#1101 #items: [] #escapeWhenCastingToString: false } ] #original: array:24 [ "id" => 1113580 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Применение производной" "field_branch_order" => "6" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1072} "field_page_start" => "106" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => 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"created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Проверь себя!" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1103 #items: [] #escapeWhenCastingToString: false } "field_page_start" => "122" "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 {#1104 #items: array:1 [ 0 => App\Models\Book {#1105 #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" => 4293 "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 {#1106 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1108 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1110 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1112 …2} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1115 …2} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1116 …2} "field_country" => Illuminate\Database\Eloquent\Collection {#1118 …2} "field_city" => Illuminate\Database\Eloquent\Collection {#1120 …2} "field_series" => Illuminate\Database\Eloquent\Collection {#1122 …2} "field_umk" => Illuminate\Database\Eloquent\Collection {#1123 …2} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1124 …2} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1125 …2} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1126 …2} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1127 …2} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2019" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 10 класса общественно-гуманитарного направления общеобразовательных школ" "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "514" "field_priority" => "2" "field_default_folder" => "/algebra_10/Abylkasymova-u/" "field_isbn" => "978-601-07-1142-6" "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 {#1128 …2} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1129 …2} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1130 …2} "field_url" => "/10-klass/algebra/abylkasymova-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1131 …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" => 4293 "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 {#1106 …2} "field_class" => Illuminate\Database\Eloquent\Collection {#1108 …2} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1110 …2} "field_author" => Illuminate\Database\Eloquent\Collection {#1112 …2} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1115 …2} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1116 …2} "field_country" => Illuminate\Database\Eloquent\Collection {#1118 …2} "field_city" => Illuminate\Database\Eloquent\Collection {#1120 …2} "field_series" => Illuminate\Database\Eloquent\Collection {#1122 …2} "field_umk" => Illuminate\Database\Eloquent\Collection {#1123 …2} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1124 …2} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1125 …2} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1126 …2} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1127 …2} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2019" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 10 класса общественно-гуманитарного направления общеобразовательных школ" "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "514" "field_priority" => "2" "field_default_folder" => "/algebra_10/Abylkasymova-u/" "field_isbn" => "978-601-07-1142-6" "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 {#1128 …2} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1129 …2} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1130 …2} "field_url" => "/10-klass/algebra/abylkasymova-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1131 …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 {#1132 #items: array:1 [ 0 => App\Models\Branch {#1133 #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" => 1113580 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Применение производной" "field_branch_order" => "6" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1134 …2} "field_page_start" => "106" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1136 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1137 …2} ] #original: array:24 [ "id" => 1113580 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Применение производной" "field_branch_order" => "6" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1134 …2} "field_page_start" => "106" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1136 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1137 …2} ] #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" => 1113585 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Проверь себя!" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1103} "field_page_start" => "122" "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 {#1104} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1132} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1141 #items: array:3 [ 0 => App\Models\Element {#1150 #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" => 1291123 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1159 #items: array:1 [ 0 => App\Models\Edition {#1151 #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" => 4958 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Условие" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1153 …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" => "0-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1154 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1155 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1156 …2} "field_content_source" => null ] #original: array:21 [ "id" => 4958 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Условие" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1153 …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" => "0-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1154 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1155 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1156 …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" => "1113997" "type" => "task" ] "text" => "<p><strong>21.</strong> Найдите наибольшее и наименьшее значения функции $f(x) = \sqrt{2}x + \cos 2x$ на отрезке $[0; \frac{\pi}{4}]$:</p><p><strong>A)</strong> $1; \frac{\sqrt{2}}{2}; [\frac{\pi}{4} + 1];$</p><p><strong>B)</strong> $0; \pi\sqrt{2};$</p><p><strong>C)</strong> $\frac{\pi}{4}; \pi;$</p><p><strong>D)</strong> $\pi\sqrt{2}; \pi.$</p>" "img" => array:1 [ 0 => array:5 [ "name" => "21-1.jpg" "alt" => null "width" => "2767" "height" => 603 "path" => "/media/algebra_10/Abylkasymova-u/0-prceb122/21-1.webp?ts=1753263280" ] ] ] #original: array:7 [ "id" => 1291123 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1159} "task" => array:2 [ "refs" => "1113997" "type" => "task" ] "text" => "<p><strong>21.</strong> Найдите наибольшее и наименьшее значения функции $f(x) = \sqrt{2}x + \cos 2x$ на отрезке $[0; \frac{\pi}{4}]$:</p><p><strong>A)</strong> $1; \frac{\sqrt{2}}{2}; [\frac{\pi}{4} + 1];$</p><p><strong>B)</strong> $0; \pi\sqrt{2};$</p><p><strong>C)</strong> $\frac{\pi}{4}; \pi;$</p><p><strong>D)</strong> $\pi\sqrt{2}; \pi.$</p>" "img" => array:1 [ 0 => array:5 [ "name" => "21-1.jpg" "alt" => null "width" => "2767" "height" => 603 "path" => "/media/algebra_10/Abylkasymova-u/0-prceb122/21-1.webp?ts=1753263280" ] ] ] #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 {#1157 #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" => 1291637 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1167 #items: array:1 [ 0 => App\Models\Edition {#1158 #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" => 4959 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение" "field_order" => "2" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1161 …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 {#1162 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1163 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1164 …2} "field_content_source" => null ] #original: array:21 [ "id" => 4959 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение" "field_order" => "2" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1161 …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 {#1162 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1163 …2} "field_process_formula" => "" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1164 …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" => "1113997" "type" => "task" ] "img" => array:1 [ 0 => array:5 [ "name" => "21-1.jpg" "alt" => null "width" => "1494" "height" => 1340 "path" => "/media/algebra_10/Abylkasymova-u/1-prceb122/21-1.webp?ts=1753263510" ] ] ] #original: array:6 [ "id" => 1291637 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1167} "task" => array:2 [ "refs" => "1113997" "type" => "task" ] "img" => array:1 [ 0 => array:5 [ "name" => "21-1.jpg" "alt" => null "width" => "1494" "height" => 1340 "path" => "/media/algebra_10/Abylkasymova-u/1-prceb122/21-1.webp?ts=1753263510" ] ] ] #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 {#1165 #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" => 1549691 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1175 #items: array:1 [ 0 => App\Models\Edition {#1166 #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" => 5655 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение 2" "field_order" => "3" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1169 …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 {#1170 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1171 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1172 …2} "field_content_source" => null ] #original: array:21 [ "id" => 5655 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Решение 2" "field_order" => "3" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1169 …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 {#1170 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1171 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1172 …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" => "1113997" "type" => "task" ] "text" => "<p>Для нахождения наибольшего и наименьшего значений функции $f(x) = \sqrt{2}x + \cos(2x)$ на отрезке $[0; \frac{\pi}{4}]$, необходимо выполнить следующие шаги.</p><p><strong>1. Найти производную функции.</strong></p><p>Производная функции $f(x)$ вычисляется по правилу дифференцирования суммы и сложной функции:</p><p>$f'(x) = (\sqrt{2}x + \cos(2x))' = (\sqrt{2}x)' + (\cos(2x))' = \sqrt{2} - 2\sin(2x)$.</p><p><strong>2. Найти критические точки функции.</strong></p><p>Критические точки — это точки из области определения функции, в которых производная равна нулю или не существует. Производная $f'(x)$ определена для всех $x$. Найдем точки, в которых производная равна нулю:</p><p>$f'(x) = 0$</p><p>$\sqrt{2} - 2\sin(2x) = 0$</p><p>$2\sin(2x) = \sqrt{2}$</p><p>$\sin(2x) = \frac{\sqrt{2}}{2}$</p><p>Решениями этого тригонометрического уравнения являются:</p><p>$2x = \frac{\pi}{4} + 2\pi k$ и $2x = \pi - \frac{\pi}{4} + 2\pi k = \frac{3\pi}{4} + 2\pi k$, где $k$ — любое целое число ($k \in \mathbb{Z}$).</p><p>Отсюда находим $x$:</p><p>$x = \frac{\pi}{8} + \pi k$ и $x = \frac{3\pi}{8} + \pi k$.</p><p>Теперь необходимо выбрать те из найденных точек, которые принадлежат заданному отрезку $[0; \frac{\pi}{4}]$.</p><p>Для первой серии корней $x = \frac{\pi}{8} + \pi k$: при $k=0$ получаем $x = \frac{\pi}{8}$. Эта точка принадлежит отрезку $[0; \frac{\pi}{4}]$, так как $0 \le \frac{\pi}{8} \le \frac{\pi}{4}$. При других целых $k$ точки выходят за пределы отрезка.</p><p>Для второй серии корней $x = \frac{3\pi}{8} + \pi k$: при $k=0$ получаем $x = \frac{3\pi}{8}$. Эта точка не принадлежит отрезку $[0; \frac{\pi}{4}]$, так как $\frac{3\pi}{8} > \frac{\pi}{4}$.</p><p>Таким образом, на заданном отрезке имеется только одна критическая точка: $x = \frac{\pi}{8}$.</p><p><strong>3. Вычислить значения функции в критической точке и на концах отрезка.</strong></p><p>Значения функции на концах отрезка и в критической точке равны:</p><p>$f(0) = \sqrt{2} \cdot 0 + \cos(2 \cdot 0) = 0 + \cos(0) = 1$.</p><p>$f(\frac{\pi}{4}) = \sqrt{2} \cdot \frac{\pi}{4} + \cos(2 \cdot \frac{\pi}{4}) = \frac{\pi\sqrt{2}}{4} + \cos(\frac{\pi}{2}) = \frac{\pi\sqrt{2}}{4} + 0 = \frac{\pi\sqrt{2}}{4}$.</p><p>$f(\frac{\pi}{8}) = \sqrt{2} \cdot \frac{\pi}{8} + \cos(2 \cdot \frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \cos(\frac{\pi}{4}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.</p><p><strong>4. Сравнить полученные значения.</strong></p><p>Сравним три полученных значения: $1$, $\frac{\pi\sqrt{2}}{4}$ и $\frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.</p><p>Так как $\pi \approx 3.14$, а $\sqrt{2} \approx 1.414$, то $\pi\sqrt{2} \approx 4.44 > 4$, следовательно $\frac{\pi\sqrt{2}}{4} > 1$.</p><p>Теперь сравним $f(\frac{\pi}{4})$ и $f(\frac{\pi}{8})$:</p><p>$f(\frac{\pi}{4}) = \frac{\pi\sqrt{2}}{4} = \frac{2\pi\sqrt{2}}{8}$.</p><p>$f(\frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2} = \frac{\pi\sqrt{2}}{8} + \frac{4\sqrt{2}}{8} = \frac{\sqrt{2}(\pi+4)}{8}$.</p><p>Сравнение $\frac{2\pi\sqrt{2}}{8}$ и $\frac{\sqrt{2}(\pi+4)}{8}$ сводится к сравнению $2\pi$ и $\pi+4$.</p><p>Вычтем $\pi$ из обеих частей: сравним $\pi$ и $4$.</p><p>Так как $\pi < 4$, то $2\pi < \pi+4$, и, следовательно, $f(\frac{\pi}{4}) < f(\frac{\pi}{8})$.</p><p>Таким образом, мы получили, что $f(0) < f(\frac{\pi}{4}) < f(\frac{\pi}{8})$.</p><p>Наименьшее значение функции на отрезке — $y_{min} = f(0) = 1$.</p><p>Наибольшее значение функции на отрезке — $y_{max} = f(\frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$. Это значение можно представить в виде $\frac{\sqrt{2}}{2}(\frac{\pi}{4}+1)$.</p><p>Найденные значения соответствуют варианту ответа А.</p><p><strong>Ответ:</strong> Наименьшее значение функции равно $1$, наибольшее значение равно $\frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.</p>" ] #original: array:6 [ "id" => 1549691 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1175} "task" => array:2 [ "refs" => "1113997" "type" => "task" ] "text" => "<p>Для нахождения наибольшего и наименьшего значений функции $f(x) = \sqrt{2}x + \cos(2x)$ на отрезке $[0; \frac{\pi}{4}]$, необходимо выполнить следующие шаги.</p><p><strong>1. Найти производную функции.</strong></p><p>Производная функции $f(x)$ вычисляется по правилу дифференцирования суммы и сложной функции:</p><p>$f'(x) = (\sqrt{2}x + \cos(2x))' = (\sqrt{2}x)' + (\cos(2x))' = \sqrt{2} - 2\sin(2x)$.</p><p><strong>2. Найти критические точки функции.</strong></p><p>Критические точки — это точки из области определения функции, в которых производная равна нулю или не существует. Производная $f'(x)$ определена для всех $x$. Найдем точки, в которых производная равна нулю:</p><p>$f'(x) = 0$</p><p>$\sqrt{2} - 2\sin(2x) = 0$</p><p>$2\sin(2x) = \sqrt{2}$</p><p>$\sin(2x) = \frac{\sqrt{2}}{2}$</p><p>Решениями этого тригонометрического уравнения являются:</p><p>$2x = \frac{\pi}{4} + 2\pi k$ и $2x = \pi - \frac{\pi}{4} + 2\pi k = \frac{3\pi}{4} + 2\pi k$, где $k$ — любое целое число ($k \in \mathbb{Z}$).</p><p>Отсюда находим $x$:</p><p>$x = \frac{\pi}{8} + \pi k$ и $x = \frac{3\pi}{8} + \pi k$.</p><p>Теперь необходимо выбрать те из найденных точек, которые принадлежат заданному отрезку $[0; \frac{\pi}{4}]$.</p><p>Для первой серии корней $x = \frac{\pi}{8} + \pi k$: при $k=0$ получаем $x = \frac{\pi}{8}$. Эта точка принадлежит отрезку $[0; \frac{\pi}{4}]$, так как $0 \le \frac{\pi}{8} \le \frac{\pi}{4}$. При других целых $k$ точки выходят за пределы отрезка.</p><p>Для второй серии корней $x = \frac{3\pi}{8} + \pi k$: при $k=0$ получаем $x = \frac{3\pi}{8}$. Эта точка не принадлежит отрезку $[0; \frac{\pi}{4}]$, так как $\frac{3\pi}{8} > \frac{\pi}{4}$.</p><p>Таким образом, на заданном отрезке имеется только одна критическая точка: $x = \frac{\pi}{8}$.</p><p><strong>3. Вычислить значения функции в критической точке и на концах отрезка.</strong></p><p>Значения функции на концах отрезка и в критической точке равны:</p><p>$f(0) = \sqrt{2} \cdot 0 + \cos(2 \cdot 0) = 0 + \cos(0) = 1$.</p><p>$f(\frac{\pi}{4}) = \sqrt{2} \cdot \frac{\pi}{4} + \cos(2 \cdot \frac{\pi}{4}) = \frac{\pi\sqrt{2}}{4} + \cos(\frac{\pi}{2}) = \frac{\pi\sqrt{2}}{4} + 0 = \frac{\pi\sqrt{2}}{4}$.</p><p>$f(\frac{\pi}{8}) = \sqrt{2} \cdot \frac{\pi}{8} + \cos(2 \cdot \frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \cos(\frac{\pi}{4}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.</p><p><strong>4. Сравнить полученные значения.</strong></p><p>Сравним три полученных значения: $1$, $\frac{\pi\sqrt{2}}{4}$ и $\frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.</p><p>Так как $\pi \approx 3.14$, а $\sqrt{2} \approx 1.414$, то $\pi\sqrt{2} \approx 4.44 > 4$, следовательно $\frac{\pi\sqrt{2}}{4} > 1$.</p><p>Теперь сравним $f(\frac{\pi}{4})$ и $f(\frac{\pi}{8})$:</p><p>$f(\frac{\pi}{4}) = \frac{\pi\sqrt{2}}{4} = \frac{2\pi\sqrt{2}}{8}$.</p><p>$f(\frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2} = \frac{\pi\sqrt{2}}{8} + \frac{4\sqrt{2}}{8} = \frac{\sqrt{2}(\pi+4)}{8}$.</p><p>Сравнение $\frac{2\pi\sqrt{2}}{8}$ и $\frac{\sqrt{2}(\pi+4)}{8}$ сводится к сравнению $2\pi$ и $\pi+4$.</p><p>Вычтем $\pi$ из обеих частей: сравним $\pi$ и $4$.</p><p>Так как $\pi < 4$, то $2\pi < \pi+4$, и, следовательно, $f(\frac{\pi}{4}) < f(\frac{\pi}{8})$.</p><p>Таким образом, мы получили, что $f(0) < f(\frac{\pi}{4}) < f(\frac{\pi}{8})$.</p><p>Наименьшее значение функции на отрезке — $y_{min} = f(0) = 1$.</p><p>Наибольшее значение функции на отрезке — $y_{max} = f(\frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$. Это значение можно представить в виде $\frac{\sqrt{2}}{2}(\frac{\pi}{4}+1)$.</p><p>Найденные значения соответствуют варианту ответа А.</p><p><strong>Ответ:</strong> Наименьшее значение функции равно $1$, наибольшее значение равно $\frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.</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" => "1113998" "type" => "task" ] "previous" => array:2 [ "refs" => "1113996" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#1194 #items: array:1 [ 0 => App\Models\Book {#1147 #connection: "mysql" #table: "books" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true 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"field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Алма" "field_patronymic" => "Есимбековна" "field_surname_rp" => null ] #original: array:12 [ "id" => 6997 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Абылкасымова" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Алма" "field_patronymic" => "Есимбековна" "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 {#1173 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: 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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 {#1180 #items: array:1 [ 0 => App\Models\Term {#1181 #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 {#1182 #items: [] #escapeWhenCastingToString: false } "field_umk" => Illuminate\Database\Eloquent\Collection {#1183 #items: [] #escapeWhenCastingToString: false } "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1184 #items: [] #escapeWhenCastingToString: false } "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1185 #items: [] #escapeWhenCastingToString: false } "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1186 #items: [] #escapeWhenCastingToString: false } "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1187 #items: [] #escapeWhenCastingToString: false } "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2019" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 10 класса общественно-гуманитарного направления общеобразовательных школ" "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "514" "field_priority" => "2" "field_default_folder" => "/algebra_10/Abylkasymova-u/" "field_isbn" => "978-601-07-1142-6" "field_cover" => array:1 [ 0 => "/media/algebra_10/Abylkasymova-u/covers/cover1.webp?ts=1752146622" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/algebra_10/Abylkasymova-u/covers/cover1.webp?ts=1752146622" "alt" => "" "width" => "1940" "height" => "2895" ] ] "field_popular_book" => null "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1188 #items: [] #escapeWhenCastingToString: false } "field_new_book" => Illuminate\Database\Eloquent\Collection {#1189 #items: [] #escapeWhenCastingToString: false } "field_old_book" => Illuminate\Database\Eloquent\Collection {#1190 #items: [] #escapeWhenCastingToString: false } "field_url" => "/10-klass/algebra/abylkasymova-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1191 #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" => 4293 "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 {#1140} "field_class" => Illuminate\Database\Eloquent\Collection {#1146} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1144} "field_author" => Illuminate\Database\Eloquent\Collection {#1145} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1174} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1176} "field_country" => Illuminate\Database\Eloquent\Collection {#1178} "field_city" => Illuminate\Database\Eloquent\Collection {#1180} "field_series" => Illuminate\Database\Eloquent\Collection {#1182} "field_umk" => Illuminate\Database\Eloquent\Collection {#1183} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1184} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1185} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1186} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1187} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2019" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для 10 класса общественно-гуманитарного направления общеобразовательных школ" "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "514" "field_priority" => "2" "field_default_folder" => "/algebra_10/Abylkasymova-u/" "field_isbn" => "978-601-07-1142-6" "field_cover" => array:1 [ 0 => "/media/algebra_10/Abylkasymova-u/covers/cover1.webp?ts=1752146622" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/algebra_10/Abylkasymova-u/covers/cover1.webp?ts=1752146622" "alt" => "" "width" => "1940" "height" => "2895" ] ] "field_popular_book" => null "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1188} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1189} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1190} "field_url" => "/10-klass/algebra/abylkasymova-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1191} "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 } "page" => Illuminate\Database\Eloquent\Collection {#1199 #items: array:1 [ 0 => App\Models\BookPage {#1198 #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" => 1098461 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/page-124" "field_display_title" => "124" "field_folder" => "1" "field_image_name" => "124" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1200 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1201 #items: array:1 [ 0 => App\Models\Book {#1147} ] #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 {#1202 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1212 #items: array:1 [ 0 => App\Models\Element {#1211 #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" => 1261886 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1213 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #original: array:6 [ "id" => 1261886 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1213 …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" => "1098462" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1098460" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#1368 #items: array:6 [ 0 => App\Models\Task {#1380 #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" => 1113996 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-20" "field_display_title" => "20" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1381 …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 {#1382 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1383 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1384 …2} "content" => Illuminate\Database\Eloquent\Collection {#1387 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1393 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1113996 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-20" "field_display_title" => "20" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1381 …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 {#1382 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1383 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1384 …2} "content" => Illuminate\Database\Eloquent\Collection {#1387 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1393 …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 {#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 [ "id" => 1113997 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-21" "field_display_title" => "21" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1385 …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 {#1392 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1394 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1390 …2} "content" => Illuminate\Database\Eloquent\Collection {#1388 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1391 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1113997 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-21" "field_display_title" => "21" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1385 …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 {#1392 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1394 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1390 …2} "content" => Illuminate\Database\Eloquent\Collection {#1388 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1391 …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 {#1389 #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" => 1113998 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-22" "field_display_title" => "22" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1402 …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 {#1403 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1404 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1405 …2} "content" => Illuminate\Database\Eloquent\Collection {#1408 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1414 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1113998 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-22" "field_display_title" => "22" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1402 …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 {#1403 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1404 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1405 …2} "content" => Illuminate\Database\Eloquent\Collection {#1408 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1414 …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 {#1407 #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" => 1113999 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-23" "field_display_title" => "23" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1406 …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 {#1413 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1415 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1411 …2} "content" => Illuminate\Database\Eloquent\Collection {#1410 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1428 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1113999 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-23" "field_display_title" => "23" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1406 …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 {#1413 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1415 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1411 …2} "content" => Illuminate\Database\Eloquent\Collection {#1410 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1428 …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 {#1412 #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" => 1114000 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-24" "field_display_title" => "24" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1409 …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 {#1427 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1429 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1425 …2} "content" => Illuminate\Database\Eloquent\Collection {#1424 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1442 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1114000 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_page_end" => null "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/prceb122-24" "field_display_title" => "24" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1409 …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 {#1427 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1429 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1425 …2} "content" => Illuminate\Database\Eloquent\Collection {#1424 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#1442 …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 [ …1] } 5 => App\Models\Task {#1426 #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" => 1098461 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "124" "field_url" => "/10-klass/algebra/abylkasymova-uchebnik/page-124" "field_display_title" => "124" 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№21 (с. 124)
Условие. №21 (с. 124)
скриншот условия
21. Найдите наибольшее и наименьшее значения функции $f(x) = \sqrt{2}x + \cos 2x$ на отрезке $[0; \frac{\pi}{4}]$:
A) $1; \frac{\sqrt{2}}{2}; [\frac{\pi}{4} + 1];$
B) $0; \pi\sqrt{2};$
C) $\frac{\pi}{4}; \pi;$
D) $\pi\sqrt{2}; \pi.$
Решение. №21 (с. 124)
Решение 2. №21 (с. 124)
Для нахождения наибольшего и наименьшего значений функции $f(x) = \sqrt{2}x + \cos(2x)$ на отрезке $[0; \frac{\pi}{4}]$, необходимо выполнить следующие шаги.
1. Найти производную функции.
Производная функции $f(x)$ вычисляется по правилу дифференцирования суммы и сложной функции:
$f'(x) = (\sqrt{2}x + \cos(2x))' = (\sqrt{2}x)' + (\cos(2x))' = \sqrt{2} - 2\sin(2x)$.
2. Найти критические точки функции.
Критические точки — это точки из области определения функции, в которых производная равна нулю или не существует. Производная $f'(x)$ определена для всех $x$. Найдем точки, в которых производная равна нулю:
$f'(x) = 0$
$\sqrt{2} - 2\sin(2x) = 0$
$2\sin(2x) = \sqrt{2}$
$\sin(2x) = \frac{\sqrt{2}}{2}$
Решениями этого тригонометрического уравнения являются:
$2x = \frac{\pi}{4} + 2\pi k$ и $2x = \pi - \frac{\pi}{4} + 2\pi k = \frac{3\pi}{4} + 2\pi k$, где $k$ — любое целое число ($k \in \mathbb{Z}$).
Отсюда находим $x$:
$x = \frac{\pi}{8} + \pi k$ и $x = \frac{3\pi}{8} + \pi k$.
Теперь необходимо выбрать те из найденных точек, которые принадлежат заданному отрезку $[0; \frac{\pi}{4}]$.
Для первой серии корней $x = \frac{\pi}{8} + \pi k$: при $k=0$ получаем $x = \frac{\pi}{8}$. Эта точка принадлежит отрезку $[0; \frac{\pi}{4}]$, так как $0 \le \frac{\pi}{8} \le \frac{\pi}{4}$. При других целых $k$ точки выходят за пределы отрезка.
Для второй серии корней $x = \frac{3\pi}{8} + \pi k$: при $k=0$ получаем $x = \frac{3\pi}{8}$. Эта точка не принадлежит отрезку $[0; \frac{\pi}{4}]$, так как $\frac{3\pi}{8} > \frac{\pi}{4}$.
Таким образом, на заданном отрезке имеется только одна критическая точка: $x = \frac{\pi}{8}$.
3. Вычислить значения функции в критической точке и на концах отрезка.
Значения функции на концах отрезка и в критической точке равны:
$f(0) = \sqrt{2} \cdot 0 + \cos(2 \cdot 0) = 0 + \cos(0) = 1$.
$f(\frac{\pi}{4}) = \sqrt{2} \cdot \frac{\pi}{4} + \cos(2 \cdot \frac{\pi}{4}) = \frac{\pi\sqrt{2}}{4} + \cos(\frac{\pi}{2}) = \frac{\pi\sqrt{2}}{4} + 0 = \frac{\pi\sqrt{2}}{4}$.
$f(\frac{\pi}{8}) = \sqrt{2} \cdot \frac{\pi}{8} + \cos(2 \cdot \frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \cos(\frac{\pi}{4}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.
4. Сравнить полученные значения.
Сравним три полученных значения: $1$, $\frac{\pi\sqrt{2}}{4}$ и $\frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.
Так как $\pi \approx 3.14$, а $\sqrt{2} \approx 1.414$, то $\pi\sqrt{2} \approx 4.44 > 4$, следовательно $\frac{\pi\sqrt{2}}{4} > 1$.
Теперь сравним $f(\frac{\pi}{4})$ и $f(\frac{\pi}{8})$:
$f(\frac{\pi}{4}) = \frac{\pi\sqrt{2}}{4} = \frac{2\pi\sqrt{2}}{8}$.
$f(\frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2} = \frac{\pi\sqrt{2}}{8} + \frac{4\sqrt{2}}{8} = \frac{\sqrt{2}(\pi+4)}{8}$.
Сравнение $\frac{2\pi\sqrt{2}}{8}$ и $\frac{\sqrt{2}(\pi+4)}{8}$ сводится к сравнению $2\pi$ и $\pi+4$.
Вычтем $\pi$ из обеих частей: сравним $\pi$ и $4$.
Так как $\pi < 4$, то $2\pi < \pi+4$, и, следовательно, $f(\frac{\pi}{4}) < f(\frac{\pi}{8})$.
Таким образом, мы получили, что $f(0) < f(\frac{\pi}{4}) < f(\frac{\pi}{8})$.
Наименьшее значение функции на отрезке — $y_{min} = f(0) = 1$.
Наибольшее значение функции на отрезке — $y_{max} = f(\frac{\pi}{8}) = \frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$. Это значение можно представить в виде $\frac{\sqrt{2}}{2}(\frac{\pi}{4}+1)$.
Найденные значения соответствуют варианту ответа А.
Ответ: Наименьшее значение функции равно $1$, наибольшее значение равно $\frac{\pi\sqrt{2}}{8} + \frac{\sqrt{2}}{2}$.
Другие задания:
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