Номер 17, страница 96, часть 1 - гдз по алгебре 10 класс учебник Пак, Ардакулы

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

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

Тип: Учебник

Издательство: Алматыкітап баспасы

Год издания: 2019 - 2026

Часть: 1

ISBN: 978-601-01-3958-9

Рекомендовано Министерством образования и науки Республики Казахстан

Часть 1. Глава 2. Тригонометрические функции. Параграф 2. Графики функций. 2.6. Примеры. Задачи - номер 17, страница 96.

App\Models\Task {#1024 // resources/views/models/task/default.blade.php
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            "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 {#1066}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1067}
          ]
          #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\Branch {#1101
          #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" => 1119364
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Графики функций"
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1102
              #items: array:1 [
                0 => App\Models\Term {#1103
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Параграф"
                      "field_creative_case" => "Параграфом"
                      "field_dative_case" => "Параграфу"
                      "field_genitive_case" => "Параграфа"
                      "field_nominative_case" => "Параграф"
                      "field_prepositional_case" => "Параграфе"
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #original: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Параграф"
                      "field_creative_case" => "Параграфом"
                      "field_dative_case" => "Параграфу"
                      "field_genitive_case" => "Параграфа"
                      "field_nominative_case" => "Параграф"
                      "field_prepositional_case" => "Параграфе"
                    ]
                    "field_page_check_not_needed" => null
                    "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_page_start" => "79"
            "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 {#1032}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1105
              #items: array:1 [
                0 => App\Models\Branch {#1106
                  #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" => 1119358
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Тригонометрические функции"
                    "field_branch_order" => "2"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1107
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "71"
                    "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 {#1108
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1109
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                  ]
                  #original: array:24 [
                    "id" => 1119358
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Тригонометрические функции"
                    "field_branch_order" => "2"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1107}
                    "field_page_start" => "71"
                    "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 {#1108}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1109}
                  ]
                  #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" => 1119364
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Графики функций"
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1102}
            "field_page_start" => "79"
            "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 {#1105}
          ]
          #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\Branch {#1110
          #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" => 1119371
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "2.6. Примеры"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1111
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "92"
            "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 {#1112
              #items: array:1 [
                0 => App\Models\Book {#1032}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1113
              #items: array:1 [
                0 => App\Models\Branch {#1114
                  #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" => 1119364
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Графики функций"
                    "field_branch_order" => "2"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1115
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "79"
                    "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 {#1116
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1117
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                  ]
                  #original: array:24 [
                    "id" => 1119364
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Графики функций"
                    "field_branch_order" => "2"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1115}
                    "field_page_start" => "79"
                    "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 {#1116}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1117}
                  ]
                  #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" => 1119371
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "2.6. Примеры"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1111}
            "field_page_start" => "92"
            "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 {#1112}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1113}
          ]
          #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\Branch {#1118
          #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" => 1119372
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Задачи"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1119
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "93"
            "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 {#1120
              #items: array:1 [
                0 => App\Models\Book {#1032}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1121
              #items: array:1 [
                0 => App\Models\Branch {#1122
                  #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" => 1119371
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "2.6. Примеры"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1123
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "92"
                    "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 {#1124
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1125
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                  ]
                  #original: array:24 [
                    "id" => 1119371
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "2.6. Примеры"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1123}
                    "field_page_start" => "92"
                    "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 {#1124}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1125}
                  ]
                  #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" => 1119372
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Задачи"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1119}
            "field_page_start" => "93"
            "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 {#1120}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1121}
          ]
          #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 {#1126
      #items: array:2 [
        0 => App\Models\Element {#1127
          #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" => 1300418
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1128
              #items: array:1 [
                0 => App\Models\Edition {#1129
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
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            "text" => "<p>Для построения графика функции $y = \tg x \cdot \ctg x$ необходимо последовательно выполнить следующие шаги: найти область определения функции, упростить ее выражение и на основе этого построить график.</p><p><strong>1. Нахождение области определения функции (ОДЗ)</strong></p><p>Функция $y = \tg x \cdot \ctg x$ определена только в том случае, когда определены оба множителя: $ \tg x $ и $ \ctg x $.</p><p>Функция $ \tg x = \frac{\sin x}{\cos x} $ определена при условии, что ее знаменатель не равен нулю, то есть $ \cos x \neq 0 $. Это выполняется для всех $ x $, кроме $ x = \frac{\pi}{2} + \pi n, $ где $ n \in \mathbb{Z} $.</p><p>Функция $ \ctg x = \frac{\cos x}{\sin x} $ определена при условии, что ее знаменатель не равен нулю, то есть $ \sin x \neq 0 $. Это выполняется для всех $ x $, кроме $ x = \pi k, $ где $ k \in \mathbb{Z} $.</p><p>Таким образом, область определения исходной функции — это все значения $x$, для которых одновременно $ \cos x \neq 0 $ и $ \sin x \neq 0 $. Объединив эти ограничения, получим, что $x$ не может принимать значения вида $ x = \frac{\pi m}{2} $, где $ m $ — любое целое число ($ m \in \mathbb{Z} $).</p><p><strong>2. Упрощение функции</strong></p><p>На всей найденной области определения справедливо основное тригонометрическое тождество: $ \tg x \cdot \ctg x = 1 $.Следовательно, для всех допустимых значений $x$ функция принимает постоянное значение: $ y = 1 $.</p><p><strong>3. Построение графика</strong></p><p>Исходя из упрощения, графиком функции является прямая $ y=1 $. Это горизонтальная линия, параллельная оси абсцисс (Ox) и проходящая через точку $(0, 1)$.</p><p>Однако, из-за ограничений на область определения, на этой прямой должны быть исключены точки, абсциссы которых не входят в ОДЗ. Эти точки, называемые "выколотыми", соответствуют значениям $ x = \frac{\pi m}{2} $, где $ m \in \mathbb{Z} $.</p><p>Таким образом, график функции — это прямая $ y=1 $ с бесконечным множеством выколотых точек, расположенных с шагом $ \frac{\pi}{2} $ вдоль оси $x$. Координаты этих точек: $ (\frac{\pi m}{2}; 1) $, где $ m \in \mathbb{Z} $. Например, это точки с координатами $(\dots, (-\pi; 1), (-\frac{\pi}{2}; 1), (0; 1), (\frac{\pi}{2}; 1), (\pi; 1), \dots)$.</p><p><strong>Ответ:</strong> Графиком функции $ y = \tg x \cdot \ctg x $ является прямая $ y=1 $ с выколотыми точками вида $ (\frac{\pi m}{2}; 1) $, где $ m \in \mathbb{Z} $.</p>"
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            "text" => "<p>Для построения графика функции $y = \tg x \cdot \ctg x$ необходимо последовательно выполнить следующие шаги: найти область определения функции, упростить ее выражение и на основе этого построить график.</p><p><strong>1. Нахождение области определения функции (ОДЗ)</strong></p><p>Функция $y = \tg x \cdot \ctg x$ определена только в том случае, когда определены оба множителя: $ \tg x $ и $ \ctg x $.</p><p>Функция $ \tg x = \frac{\sin x}{\cos x} $ определена при условии, что ее знаменатель не равен нулю, то есть $ \cos x \neq 0 $. Это выполняется для всех $ x $, кроме $ x = \frac{\pi}{2} + \pi n, $ где $ n \in \mathbb{Z} $.</p><p>Функция $ \ctg x = \frac{\cos x}{\sin x} $ определена при условии, что ее знаменатель не равен нулю, то есть $ \sin x \neq 0 $. Это выполняется для всех $ x $, кроме $ x = \pi k, $ где $ k \in \mathbb{Z} $.</p><p>Таким образом, область определения исходной функции — это все значения $x$, для которых одновременно $ \cos x \neq 0 $ и $ \sin x \neq 0 $. Объединив эти ограничения, получим, что $x$ не может принимать значения вида $ x = \frac{\pi m}{2} $, где $ m $ — любое целое число ($ m \in \mathbb{Z} $).</p><p><strong>2. Упрощение функции</strong></p><p>На всей найденной области определения справедливо основное тригонометрическое тождество: $ \tg x \cdot \ctg x = 1 $.Следовательно, для всех допустимых значений $x$ функция принимает постоянное значение: $ y = 1 $.</p><p><strong>3. Построение графика</strong></p><p>Исходя из упрощения, графиком функции является прямая $ y=1 $. Это горизонтальная линия, параллельная оси абсцисс (Ox) и проходящая через точку $(0, 1)$.</p><p>Однако, из-за ограничений на область определения, на этой прямой должны быть исключены точки, абсциссы которых не входят в ОДЗ. Эти точки, называемые "выколотыми", соответствуют значениям $ x = \frac{\pi m}{2} $, где $ m \in \mathbb{Z} $.</p><p>Таким образом, график функции — это прямая $ y=1 $ с бесконечным множеством выколотых точек, расположенных с шагом $ \frac{\pi}{2} $ вдоль оси $x$. Координаты этих точек: $ (\frac{\pi m}{2}; 1) $, где $ m \in \mathbb{Z} $. Например, это точки с координатами $(\dots, (-\pi; 1), (-\frac{\pi}{2}; 1), (0; 1), (\frac{\pi}{2}; 1), (\pi; 1), \dots)$.</p><p><strong>Ответ:</strong> Графиком функции $ y = \tg x \cdot \ctg x $ является прямая $ y=1 $ с выколотыми точками вида $ (\frac{\pi m}{2}; 1) $, где $ m \in \mathbb{Z} $.</p>"
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№17 (с. 96)
Условие. №17 (с. 96)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 1, страница 96, номер 17, Условие

17.(2)

Постройте график функции $y = \operatorname{tg} x \cdot \operatorname{ctg} x$.

Решение 2 (rus). №17 (с. 96)

Для построения графика функции $y = \tg x \cdot \ctg x$ необходимо последовательно выполнить следующие шаги: найти область определения функции, упростить ее выражение и на основе этого построить график.

1. Нахождение области определения функции (ОДЗ)

Функция $y = \tg x \cdot \ctg x$ определена только в том случае, когда определены оба множителя: $ \tg x $ и $ \ctg x $.

Функция $ \tg x = \frac{\sin x}{\cos x} $ определена при условии, что ее знаменатель не равен нулю, то есть $ \cos x \neq 0 $. Это выполняется для всех $ x $, кроме $ x = \frac{\pi}{2} + \pi n, $ где $ n \in \mathbb{Z} $.

Функция $ \ctg x = \frac{\cos x}{\sin x} $ определена при условии, что ее знаменатель не равен нулю, то есть $ \sin x \neq 0 $. Это выполняется для всех $ x $, кроме $ x = \pi k, $ где $ k \in \mathbb{Z} $.

Таким образом, область определения исходной функции — это все значения $x$, для которых одновременно $ \cos x \neq 0 $ и $ \sin x \neq 0 $. Объединив эти ограничения, получим, что $x$ не может принимать значения вида $ x = \frac{\pi m}{2} $, где $ m $ — любое целое число ($ m \in \mathbb{Z} $).

2. Упрощение функции

На всей найденной области определения справедливо основное тригонометрическое тождество: $ \tg x \cdot \ctg x = 1 $.Следовательно, для всех допустимых значений $x$ функция принимает постоянное значение: $ y = 1 $.

3. Построение графика

Исходя из упрощения, графиком функции является прямая $ y=1 $. Это горизонтальная линия, параллельная оси абсцисс (Ox) и проходящая через точку $(0, 1)$.

Однако, из-за ограничений на область определения, на этой прямой должны быть исключены точки, абсциссы которых не входят в ОДЗ. Эти точки, называемые "выколотыми", соответствуют значениям $ x = \frac{\pi m}{2} $, где $ m \in \mathbb{Z} $.

Таким образом, график функции — это прямая $ y=1 $ с бесконечным множеством выколотых точек, расположенных с шагом $ \frac{\pi}{2} $ вдоль оси $x$. Координаты этих точек: $ (\frac{\pi m}{2}; 1) $, где $ m \in \mathbb{Z} $. Например, это точки с координатами $(\dots, (-\pi; 1), (-\frac{\pi}{2}; 1), (0; 1), (\frac{\pi}{2}; 1), (\pi; 1), \dots)$.

Ответ: Графиком функции $ y = \tg x \cdot \ctg x $ является прямая $ y=1 $ с выколотыми точками вида $ (\frac{\pi m}{2}; 1) $, где $ m \in \mathbb{Z} $.

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