Номер 8, страница 16, часть 1 - гдз по алгебре 10 класс учебник Пак, Ардакулы

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

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

Тип: Учебник

Издательство: Алматыкітап баспасы

Год издания: 2019 - 2026

Часть: 1

ISBN: 978-601-01-3958-9

Рекомендовано Министерством образования и науки Республики Казахстан

Часть 1. Глава 1. Функции, её свойства и график. Параграф 1. Функция и способы её задания. Задачи - номер 8, страница 16.

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                            "id" => 5459
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "10"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "desjatyj"
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                        }
                      ]
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                    }
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1124
                      #items: array:1 [
                        0 => App\Models\Term {#1125
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
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                          #withCount: []
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                          #perPage: 15
                          +exists: true
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                          #attributes: array:6 [
                            "id" => 7006
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматыкітап баспасы"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "almatykitap baspasy"
                          ]
                          #original: array:6 [
                            "id" => 7006
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматыкітап баспасы"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "almatykitap baspasy"
                          ]
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                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
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                          #hidden: []
                          #visible: []
                          #fillable: []
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                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1126
                      #items: array:3 [
                        0 => App\Models\Term {#1127
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 7007
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Пак"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Олег"
                            "field_patronymic" => "Владимирович"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 7007
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Пак"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Олег"
                            "field_patronymic" => "Владимирович"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Term {#1128
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 7008
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ардакулы"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Дархан"
                            "field_patronymic" => null
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 7008
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ардакулы"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Дархан"
                            "field_patronymic" => null
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        2 => App\Models\Term {#1129
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 7009
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ескендирова"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Елена"
                            "field_patronymic" => "Викторовна"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 7009
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Ескендирова"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Елена"
                            "field_patronymic" => "Викторовна"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1130
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1131
                      #items: array:1 [
                        0 => App\Models\Term {#1132
                          #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 {#1133
                      #items: array:1 [
                        0 => App\Models\Term {#1134
                          #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: []
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                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1135
                      #items: array:1 [
                        0 => App\Models\Term {#1136
                          #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: []
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                          #attributeCastCache: []
                          #dateFormat: null
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                          #relations: []
                          #touches: []
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                          #visible: []
                          #fillable: []
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                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1137
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1138
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1139
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1140
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1141
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1142
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => "1, 2"
                    "field_part_writing" => "Часть"
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для учащихся 10 класса общеобразовательной школы общественно-гуманитарного направления"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
                    "field_priority" => "6"
                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [
                      0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                        "alt" => ""
                        "width" => "1940"
                        "height" => "2895"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1143
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1144
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1145
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1146
                      #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 [
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                      "subject" => 542
                      "class_subject" => 387
                    ]
                  ]
                  #original: array:50 [
                    "id" => 4295
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_tree_default_status" => "tasks"
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                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1121}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1122}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1124}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1126}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1130}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1131}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1133}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1135}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1137}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1138}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1139}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1140}
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1141}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1142}
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => "1, 2"
                    "field_part_writing" => "Часть"
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для учащихся 10 класса общеобразовательной школы общественно-гуманитарного направления"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
                    "field_priority" => "6"
                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [
                      0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                        "alt" => ""
                        "width" => "1940"
                        "height" => "2895"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1143}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1144}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1145}
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1146}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 381
                      "subject" => 542
                      "class_subject" => 387
                    ]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1147
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119328
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1120}
            "field_page_start" => "6"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => array:1 [
              0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
            ]
            "field_branch_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                "alt" => ""
                "width" => "1940"
                "height" => "2895"
              ]
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1149}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1147}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1148
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
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            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1153
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                  #connection: "mysql"
                  #table: "terms"
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                    "created_at" => "2026-04-10 13:58:26"
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        3 => App\Models\Branch {#1159
          #connection: "mysql"
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            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1175
              #items: array:1 [
                0 => App\Models\Branch {#1174
                  #connection: "mysql"
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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1176 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1177 …2}
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    "content" => Illuminate\Database\Eloquent\Collection {#1092
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        0 => App\Models\Element {#1114
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            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1103
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                    "created_at" => "2026-04-10 13:58:26"
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                    "title" => "Условие"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1074 …2}
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                    "field_solution_author" => "Автор"
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                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1102 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1101 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1100 …2}
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                  ]
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            "task" => array:2 [
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            "text" => "<p><strong>8. (3)</strong> Найдите область определения следующих функций:</p><p><strong>а)</strong> $f(x) = \frac{1}{x};$</p><p><strong>б)</strong> $f(x) = \frac{1}{x^2 - 1};$</p><p><strong>в)</strong> $f(x) = \sqrt{-x};$</p><p><strong>г)</strong> $f(x) = \sqrt{1 - x^2};$</p><p><strong>д)</strong> $f(x) = \frac{1}{\sqrt{1 - x^2}};$</p><p><strong>е)</strong> $f(x) = \frac{\sqrt{1 - x^2}}{x};$</p><p><strong>ж)</strong> $f(x) = \sqrt{\frac{1 - x^2}{x}};$</p><p><strong>з)</strong> $f(x) = \frac{\sqrt{1 - x^2}}{\sqrt{x}}.$</p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "8-1.jpg"
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            "text" => "<p><strong>8. (3)</strong> Найдите область определения следующих функций:</p><p><strong>а)</strong> $f(x) = \frac{1}{x};$</p><p><strong>б)</strong> $f(x) = \frac{1}{x^2 - 1};$</p><p><strong>в)</strong> $f(x) = \sqrt{-x};$</p><p><strong>г)</strong> $f(x) = \sqrt{1 - x^2};$</p><p><strong>д)</strong> $f(x) = \frac{1}{\sqrt{1 - x^2}};$</p><p><strong>е)</strong> $f(x) = \frac{\sqrt{1 - x^2}}{x};$</p><p><strong>ж)</strong> $f(x) = \sqrt{\frac{1 - x^2}{x}};$</p><p><strong>з)</strong> $f(x) = \frac{\sqrt{1 - x^2}}{\sqrt{x}}.$</p>"
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            "text" => "<p><strong>а)</strong> Область определения функции — это множество всех значений аргумента $x$, для которых функция определена. Для функции $f(x)=\frac{1}{x}$ знаменатель дроби не должен быть равен нулю. Следовательно, $x \neq 0$. Областью определения является множество всех действительных чисел, кроме нуля. <br>Ответ: $x \in (-\infty; 0) \cup (0; +\infty)$</p> <p><strong>б)</strong> Для функции $f(x)=\frac{1}{x^2-1}$ знаменатель дроби не должен равняться нулю. Необходимо найти значения $x$, при которых $x^2-1=0$. Решая уравнение, получаем $x^2=1$, откуда $x=1$ и $x=-1$. Таким образом, область определения — это все действительные числа, за исключением $1$ и $-1$. <br>Ответ: $x \in (-\infty; -1) \cup (-1; 1) \cup (1; +\infty)$</p> <p><strong>в)</strong> Для функции $f(x)=\sqrt{-x}$ выражение, находящееся под знаком квадратного корня, должно быть неотрицательным. То есть, должно выполняться неравенство $-x \ge 0$. Умножив обе части неравенства на $-1$ и изменив знак неравенства на противоположный, получим $x \le 0$. <br>Ответ: $x \in (-\infty; 0]$</p> <p><strong>г)</strong> Для функции $f(x)=\sqrt{1-x^2}$ подкоренное выражение должно быть неотрицательным. Решаем неравенство $1-x^2 \ge 0$. Это неравенство можно переписать как $x^2 \le 1$, что эквивалентно $|x| \le 1$. Таким образом, $x$ должен находиться в пределах от $-1$ до $1$, включая концы отрезка. <br>Ответ: $x \in [-1; 1]$</p> <p><strong>д)</strong> Для функции $f(x)=\frac{1}{\sqrt{1-x^2}}$ выражение под знаком корня должно быть строго положительным, поскольку корень находится в знаменателе дроби, который не может быть равен нулю. Следовательно, решаем неравенство $1-x^2 > 0$. Это неравенство равносильно $x^2 < 1$, или $|x| < 1$, что означает $-1 < x < 1$. <br>Ответ: $x \in (-1; 1)$</p> <p><strong>е)</strong> Для функции $f(x)=\frac{\sqrt{1-x^2}}{x}$ должны выполняться два условия одновременно: <br>1) Выражение под корнем в числителе должно быть неотрицательным: $1-x^2 \ge 0$, что дает $x \in [-1; 1]$. <br>2) Знаменатель не должен быть равен нулю: $x \neq 0$. <br>Объединяя эти условия, мы должны исключить точку $x=0$ из отрезка $[-1; 1]$. <br>Ответ: $x \in [-1; 0) \cup (0; 1]$</p> <p><strong>ж)</strong> Для функции $f(x)=\sqrt{\frac{1-x^2}{x}}$ выражение под знаком корня должно быть неотрицательным. Решаем неравенство $\frac{1-x^2}{x} \ge 0$. Для решения используем метод интервалов. Находим нули числителя ($1-x^2=0 \implies x=\pm1$) и нуль знаменателя ($x=0$). Эти точки делят числовую ось на интервалы. Проверяя знак дроби на каждом интервале, находим, что она положительна при $x \in (-\infty; -1)$ и $x \in (0; 1)$. Так как неравенство нестрогое, включаем нули числителя. Нуль знаменателя всегда исключается. <br>Ответ: $x \in (-\infty; -1] \cup (0; 1]$</p> <p><strong>з)</strong> Для функции $f(x)=\frac{\sqrt{1-x^2}}{\sqrt{x}}$ должны выполняться два условия: <br>1) Подкоренное выражение в числителе должно быть неотрицательным: $1-x^2 \ge 0 \implies x \in [-1; 1]$. <br>2) Подкоренное выражение в знаменателе должно быть строго положительным: $x > 0$. <br>Область определения является пересечением множеств, удовлетворяющих этим двум условиям: $x \in [-1; 1] \cap (0; +\infty)$. <br>Ответ: $x \in (0; 1]$</p>"
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            "text" => "<p><strong>а)</strong> Область определения функции — это множество всех значений аргумента $x$, для которых функция определена. Для функции $f(x)=\frac{1}{x}$ знаменатель дроби не должен быть равен нулю. Следовательно, $x \neq 0$. Областью определения является множество всех действительных чисел, кроме нуля. <br>Ответ: $x \in (-\infty; 0) \cup (0; +\infty)$</p> <p><strong>б)</strong> Для функции $f(x)=\frac{1}{x^2-1}$ знаменатель дроби не должен равняться нулю. Необходимо найти значения $x$, при которых $x^2-1=0$. Решая уравнение, получаем $x^2=1$, откуда $x=1$ и $x=-1$. Таким образом, область определения — это все действительные числа, за исключением $1$ и $-1$. <br>Ответ: $x \in (-\infty; -1) \cup (-1; 1) \cup (1; +\infty)$</p> <p><strong>в)</strong> Для функции $f(x)=\sqrt{-x}$ выражение, находящееся под знаком квадратного корня, должно быть неотрицательным. То есть, должно выполняться неравенство $-x \ge 0$. Умножив обе части неравенства на $-1$ и изменив знак неравенства на противоположный, получим $x \le 0$. <br>Ответ: $x \in (-\infty; 0]$</p> <p><strong>г)</strong> Для функции $f(x)=\sqrt{1-x^2}$ подкоренное выражение должно быть неотрицательным. Решаем неравенство $1-x^2 \ge 0$. Это неравенство можно переписать как $x^2 \le 1$, что эквивалентно $|x| \le 1$. Таким образом, $x$ должен находиться в пределах от $-1$ до $1$, включая концы отрезка. <br>Ответ: $x \in [-1; 1]$</p> <p><strong>д)</strong> Для функции $f(x)=\frac{1}{\sqrt{1-x^2}}$ выражение под знаком корня должно быть строго положительным, поскольку корень находится в знаменателе дроби, который не может быть равен нулю. Следовательно, решаем неравенство $1-x^2 > 0$. Это неравенство равносильно $x^2 < 1$, или $|x| < 1$, что означает $-1 < x < 1$. <br>Ответ: $x \in (-1; 1)$</p> <p><strong>е)</strong> Для функции $f(x)=\frac{\sqrt{1-x^2}}{x}$ должны выполняться два условия одновременно: <br>1) Выражение под корнем в числителе должно быть неотрицательным: $1-x^2 \ge 0$, что дает $x \in [-1; 1]$. <br>2) Знаменатель не должен быть равен нулю: $x \neq 0$. <br>Объединяя эти условия, мы должны исключить точку $x=0$ из отрезка $[-1; 1]$. <br>Ответ: $x \in [-1; 0) \cup (0; 1]$</p> <p><strong>ж)</strong> Для функции $f(x)=\sqrt{\frac{1-x^2}{x}}$ выражение под знаком корня должно быть неотрицательным. Решаем неравенство $\frac{1-x^2}{x} \ge 0$. Для решения используем метод интервалов. Находим нули числителя ($1-x^2=0 \implies x=\pm1$) и нуль знаменателя ($x=0$). Эти точки делят числовую ось на интервалы. Проверяя знак дроби на каждом интервале, находим, что она положительна при $x \in (-\infty; -1)$ и $x \in (0; 1)$. Так как неравенство нестрогое, включаем нули числителя. Нуль знаменателя всегда исключается. <br>Ответ: $x \in (-\infty; -1] \cup (0; 1]$</p> <p><strong>з)</strong> Для функции $f(x)=\frac{\sqrt{1-x^2}}{\sqrt{x}}$ должны выполняться два условия: <br>1) Подкоренное выражение в числителе должно быть неотрицательным: $1-x^2 \ge 0 \implies x \in [-1; 1]$. <br>2) Подкоренное выражение в знаменателе должно быть строго положительным: $x > 0$. <br>Область определения является пересечением множеств, удовлетворяющих этим двум условиям: $x \in [-1; 1] \cap (0; +\infty)$. <br>Ответ: $x \in (0; 1]$</p>"
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№8 (с. 16)
Условие. №8 (с. 16)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 1, страница 16, номер 8, Условие

8. (3) Найдите область определения следующих функций:

а) $f(x) = \frac{1}{x};$

б) $f(x) = \frac{1}{x^2 - 1};$

в) $f(x) = \sqrt{-x};$

г) $f(x) = \sqrt{1 - x^2};$

д) $f(x) = \frac{1}{\sqrt{1 - x^2}};$

е) $f(x) = \frac{\sqrt{1 - x^2}}{x};$

ж) $f(x) = \sqrt{\frac{1 - x^2}{x}};$

з) $f(x) = \frac{\sqrt{1 - x^2}}{\sqrt{x}}.$

Решение 2 (rus). №8 (с. 16)

а) Область определения функции — это множество всех значений аргумента $x$, для которых функция определена. Для функции $f(x)=\frac{1}{x}$ знаменатель дроби не должен быть равен нулю. Следовательно, $x \neq 0$. Областью определения является множество всех действительных чисел, кроме нуля.
Ответ: $x \in (-\infty; 0) \cup (0; +\infty)$

б) Для функции $f(x)=\frac{1}{x^2-1}$ знаменатель дроби не должен равняться нулю. Необходимо найти значения $x$, при которых $x^2-1=0$. Решая уравнение, получаем $x^2=1$, откуда $x=1$ и $x=-1$. Таким образом, область определения — это все действительные числа, за исключением $1$ и $-1$.
Ответ: $x \in (-\infty; -1) \cup (-1; 1) \cup (1; +\infty)$

в) Для функции $f(x)=\sqrt{-x}$ выражение, находящееся под знаком квадратного корня, должно быть неотрицательным. То есть, должно выполняться неравенство $-x \ge 0$. Умножив обе части неравенства на $-1$ и изменив знак неравенства на противоположный, получим $x \le 0$.
Ответ: $x \in (-\infty; 0]$

г) Для функции $f(x)=\sqrt{1-x^2}$ подкоренное выражение должно быть неотрицательным. Решаем неравенство $1-x^2 \ge 0$. Это неравенство можно переписать как $x^2 \le 1$, что эквивалентно $|x| \le 1$. Таким образом, $x$ должен находиться в пределах от $-1$ до $1$, включая концы отрезка.
Ответ: $x \in [-1; 1]$

д) Для функции $f(x)=\frac{1}{\sqrt{1-x^2}}$ выражение под знаком корня должно быть строго положительным, поскольку корень находится в знаменателе дроби, который не может быть равен нулю. Следовательно, решаем неравенство $1-x^2 > 0$. Это неравенство равносильно $x^2 < 1$, или $|x| < 1$, что означает $-1 < x < 1$.
Ответ: $x \in (-1; 1)$

е) Для функции $f(x)=\frac{\sqrt{1-x^2}}{x}$ должны выполняться два условия одновременно:
1) Выражение под корнем в числителе должно быть неотрицательным: $1-x^2 \ge 0$, что дает $x \in [-1; 1]$.
2) Знаменатель не должен быть равен нулю: $x \neq 0$.
Объединяя эти условия, мы должны исключить точку $x=0$ из отрезка $[-1; 1]$.
Ответ: $x \in [-1; 0) \cup (0; 1]$

ж) Для функции $f(x)=\sqrt{\frac{1-x^2}{x}}$ выражение под знаком корня должно быть неотрицательным. Решаем неравенство $\frac{1-x^2}{x} \ge 0$. Для решения используем метод интервалов. Находим нули числителя ($1-x^2=0 \implies x=\pm1$) и нуль знаменателя ($x=0$). Эти точки делят числовую ось на интервалы. Проверяя знак дроби на каждом интервале, находим, что она положительна при $x \in (-\infty; -1)$ и $x \in (0; 1)$. Так как неравенство нестрогое, включаем нули числителя. Нуль знаменателя всегда исключается.
Ответ: $x \in (-\infty; -1] \cup (0; 1]$

з) Для функции $f(x)=\frac{\sqrt{1-x^2}}{\sqrt{x}}$ должны выполняться два условия:
1) Подкоренное выражение в числителе должно быть неотрицательным: $1-x^2 \ge 0 \implies x \in [-1; 1]$.
2) Подкоренное выражение в знаменателе должно быть строго положительным: $x > 0$.
Область определения является пересечением множеств, удовлетворяющих этим двум условиям: $x \in [-1; 1] \cap (0; +\infty)$.
Ответ: $x \in (0; 1]$

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