Номер 22, страница 206, 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 4. Вероятность. Параграф 3. Классическое определение вероятности. Задачи - номер 22, страница 206.

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                            "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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                          #dateFormat: null
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                          #hidden: []
                          #visible: []
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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
                          #with: []
                          #withCount: []
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                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
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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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                          #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_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: []
                          #guarded: array:1 [
                            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: []
                          #casts: []
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                          #attributeCastCache: []
                          #dateFormat: null
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                          #dispatchesEvents: []
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                          #relations: []
                          #touches: []
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                          #hidden: []
                          #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 [
                      "class" => 381
                      "subject" => 542
                      "class_subject" => 387
                    ]
                  ]
                  #original: array:50 [
                    "id" => 4295
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_tree_default_status" => "tasks"
                    "field_pages_status" => null
                    "field_subject" => Illuminate\Database\Eloquent\Collection {#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
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119408
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Вероятность"
            "field_branch_order" => "4"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1153
              #items: array:1 [
                0 => App\Models\Term {#1150
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #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
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                  ]
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                    "name" => "Глава"
                    "field_cases" => array:6 [ …6]
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                    0 => "*"
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            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1152
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                0 => App\Models\Book {#1119}
              ]
              #escapeWhenCastingToString: false
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            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1151
              #items: array:1 [
                0 => App\Models\Branch {#1034}
              ]
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            "field_url" => null
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        }
        2 => App\Models\Branch {#1154
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          #table: "branches"
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                  #table: "terms"
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                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
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                    "field_short_name" => "§"
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            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1166
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                0 => App\Models\Branch {#1165
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                    "book" => Illuminate\Database\Eloquent\Collection {#1168 …2}
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                  ]
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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1167 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1168 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1169 …2}
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                    0 => "*"
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              #escapeWhenCastingToString: false
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            "field_branch_order" => "3"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1158}
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            "book" => Illuminate\Database\Eloquent\Collection {#1157}
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            0 => "*"
          ]
        }
        3 => App\Models\Branch {#1159
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
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            "created_at" => "2026-04-10 13:58:26"
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            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1156
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              #escapeWhenCastingToString: false
            }
            "field_page_start" => "204"
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              #items: array:1 [
                0 => App\Models\Book {#1119}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1175
              #items: array:1 [
                0 => App\Models\Branch {#1174
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  #attributes: array:24 [
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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1176 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1178 …2}
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                    "id" => 1119419
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_display_title" => "Классическое определение вероятности"
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                    0 => "*"
                  ]
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      ]
      #escapeWhenCastingToString: false
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    "content" => Illuminate\Database\Eloquent\Collection {#1070
      #items: array:2 [
        0 => App\Models\Element {#1097
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          #primaryKey: "id"
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          #attributes: array:7 [
            "id" => 1300751
            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1088
              #items: array:1 [
                0 => App\Models\Edition {#1087
                  #connection: "mysql"
                  #table: "editions"
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                    "created_at" => "2026-04-10 13:58:26"
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                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1076 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
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                    "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 {#1081 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1085 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1086 …2}
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                  ]
                  #original: array:21 [
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                    "title" => "Условие"
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                  ]
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            "task" => array:2 [
              "refs" => "1120066"
              "type" => "task"
            ]
            "text" => "<p><strong>22.</strong> На окружности отмечены 10 красных и 7 синих точек. Рассматриваются треугольники с вершинами в отмеченных точках. Какова вероятность того, что наугад выбранный треугольник:</p><p><strong>а) имеет ровно одну красную вершину;</strong></p><p><strong>б) имеет хотя бы 2 красные вершины?</strong></p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "22-1.jpg"
                "alt" => null
                "width" => "1667"
                "height" => 336
                "path" => "/media/algebra_10/baspasy-u19/0-4-3zad/22-1.webp?ts=1753534739"
              ]
            ]
          ]
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            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1088}
            "task" => array:2 [
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            "text" => "<p><strong>22.</strong> На окружности отмечены 10 красных и 7 синих точек. Рассматриваются треугольники с вершинами в отмеченных точках. Какова вероятность того, что наугад выбранный треугольник:</p><p><strong>а) имеет ровно одну красную вершину;</strong></p><p><strong>б) имеет хотя бы 2 красные вершины?</strong></p>"
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            "text" => "<p>Для решения задачи воспользуемся методами комбинаторики и классическим определением вероятности. Вероятность события равна отношению числа благоприятных этому событию исходов к общему числу всех равновозможных исходов.</p><p>Всего на окружности отмечено $10$ красных и $7$ синих точек, то есть $10 + 7 = 17$ точек. Треугольник образуется выбором любых трех точек из этих 17. Поскольку порядок выбора вершин не имеет значения, общее число возможных треугольников (общее число исходов) можно найти с помощью числа сочетаний из 17 по 3:</p><p>$N = C_{17}^3 = \frac{17!}{3!(17-3)!} = \frac{17 \cdot 16 \cdot 15}{3 \cdot 2 \cdot 1} = 17 \cdot 8 \cdot 5 = 680$.</p><p><strong>а) имеет ровно одну красную вершину;</strong></p><p>Чтобы треугольник имел ровно одну красную вершину, необходимо, чтобы две другие его вершины были синими. Найдем число благоприятных исходов для этого события.</p><p>Число способов выбрать 1 красную точку из 10 имеющихся равно $C_{10}^1$.</p><p>Число способов выбрать 2 синие точки из 7 имеющихся равно $C_7^2$.</p><p>Общее число треугольников с одной красной и двумя синими вершинами (число благоприятных исходов) находится по правилу произведения:</p><p>$N_a = C_{10}^1 \cdot C_7^2 = \frac{10!}{1!(10-1)!} \cdot \frac{7!}{2!(7-2)!} = 10 \cdot \frac{7 \cdot 6}{2 \cdot 1} = 10 \cdot 21 = 210$.</p><p>Вероятность $P(a)$ того, что наугад выбранный треугольник будет иметь ровно одну красную вершину, равна:</p><p>$P(a) = \frac{N_a}{N} = \frac{210}{680} = \frac{21}{68}$.</p><p><strong>Ответ:</strong> $\frac{21}{68}$.</p><p><strong>б) имеет хотя бы 2 красные вершины?</strong></p><p>Событие "треугольник имеет хотя бы 2 красные вершины" означает, что он может иметь либо 2 красные вершины, либо 3 красные вершины. Это два несовместных случая, поэтому для нахождения общего числа благоприятных исходов мы можем сложить число исходов для каждого случая.</p><p><em>Случай 1: Треугольник имеет ровно 2 красные вершины и 1 синюю.</em></p><p>Число способов выбрать 2 красные вершины из 10: $C_{10}^2 = \frac{10!}{2!(10-2)!} = \frac{10 \cdot 9}{2 \cdot 1} = 45$.</p><p>Число способов выбрать 1 синюю вершину из 7: $C_7^1 = 7$.</p><p>Число таких треугольников: $N_{2k} = C_{10}^2 \cdot C_7^1 = 45 \cdot 7 = 315$.</p><p><em>Случай 2: Треугольник имеет 3 красные вершины.</em></p><p>В этом случае все три вершины выбираются из 10 красных точек.</p><p>Число таких треугольников: $N_{3k} = C_{10}^3 = \frac{10!}{3!(10-3)!} = \frac{10 \cdot 9 \cdot 8}{3 \cdot 2 \cdot 1} = 10 \cdot 3 \cdot 4 = 120$.</p><p>Общее число благоприятных исходов для события "б" равно сумме исходов в этих двух случаях:</p><p>$N_b = N_{2k} + N_{3k} = 315 + 120 = 435$.</p><p>Вероятность $P(b)$ этого события равна:</p><p>$P(b) = \frac{N_b}{N} = \frac{435}{680}$.</p><p>Сократим полученную дробь, разделив числитель и знаменатель на 5:</p><p>$P(b) = \frac{435 \div 5}{680 \div 5} = \frac{87}{136}$.</p><p><strong>Ответ:</strong> $\frac{87}{136}$.</p>"
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            "text" => "<p>Для решения задачи воспользуемся методами комбинаторики и классическим определением вероятности. Вероятность события равна отношению числа благоприятных этому событию исходов к общему числу всех равновозможных исходов.</p><p>Всего на окружности отмечено $10$ красных и $7$ синих точек, то есть $10 + 7 = 17$ точек. Треугольник образуется выбором любых трех точек из этих 17. Поскольку порядок выбора вершин не имеет значения, общее число возможных треугольников (общее число исходов) можно найти с помощью числа сочетаний из 17 по 3:</p><p>$N = C_{17}^3 = \frac{17!}{3!(17-3)!} = \frac{17 \cdot 16 \cdot 15}{3 \cdot 2 \cdot 1} = 17 \cdot 8 \cdot 5 = 680$.</p><p><strong>а) имеет ровно одну красную вершину;</strong></p><p>Чтобы треугольник имел ровно одну красную вершину, необходимо, чтобы две другие его вершины были синими. Найдем число благоприятных исходов для этого события.</p><p>Число способов выбрать 1 красную точку из 10 имеющихся равно $C_{10}^1$.</p><p>Число способов выбрать 2 синие точки из 7 имеющихся равно $C_7^2$.</p><p>Общее число треугольников с одной красной и двумя синими вершинами (число благоприятных исходов) находится по правилу произведения:</p><p>$N_a = C_{10}^1 \cdot C_7^2 = \frac{10!}{1!(10-1)!} \cdot \frac{7!}{2!(7-2)!} = 10 \cdot \frac{7 \cdot 6}{2 \cdot 1} = 10 \cdot 21 = 210$.</p><p>Вероятность $P(a)$ того, что наугад выбранный треугольник будет иметь ровно одну красную вершину, равна:</p><p>$P(a) = \frac{N_a}{N} = \frac{210}{680} = \frac{21}{68}$.</p><p><strong>Ответ:</strong> $\frac{21}{68}$.</p><p><strong>б) имеет хотя бы 2 красные вершины?</strong></p><p>Событие "треугольник имеет хотя бы 2 красные вершины" означает, что он может иметь либо 2 красные вершины, либо 3 красные вершины. Это два несовместных случая, поэтому для нахождения общего числа благоприятных исходов мы можем сложить число исходов для каждого случая.</p><p><em>Случай 1: Треугольник имеет ровно 2 красные вершины и 1 синюю.</em></p><p>Число способов выбрать 2 красные вершины из 10: $C_{10}^2 = \frac{10!}{2!(10-2)!} = \frac{10 \cdot 9}{2 \cdot 1} = 45$.</p><p>Число способов выбрать 1 синюю вершину из 7: $C_7^1 = 7$.</p><p>Число таких треугольников: $N_{2k} = C_{10}^2 \cdot C_7^1 = 45 \cdot 7 = 315$.</p><p><em>Случай 2: Треугольник имеет 3 красные вершины.</em></p><p>В этом случае все три вершины выбираются из 10 красных точек.</p><p>Число таких треугольников: $N_{3k} = C_{10}^3 = \frac{10!}{3!(10-3)!} = \frac{10 \cdot 9 \cdot 8}{3 \cdot 2 \cdot 1} = 10 \cdot 3 \cdot 4 = 120$.</p><p>Общее число благоприятных исходов для события "б" равно сумме исходов в этих двух случаях:</p><p>$N_b = N_{2k} + N_{3k} = 315 + 120 = 435$.</p><p>Вероятность $P(b)$ этого события равна:</p><p>$P(b) = \frac{N_b}{N} = \frac{435}{680}$.</p><p>Сократим полученную дробь, разделив числитель и знаменатель на 5:</p><p>$P(b) = \frac{435 \div 5}{680 \div 5} = \frac{87}{136}$.</p><p><strong>Ответ:</strong> $\frac{87}{136}$.</p>"
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№22 (с. 206)
Условие. №22 (с. 206)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 1, страница 206, номер 22, Условие

22. На окружности отмечены 10 красных и 7 синих точек. Рассматриваются треугольники с вершинами в отмеченных точках. Какова вероятность того, что наугад выбранный треугольник:

а) имеет ровно одну красную вершину;

б) имеет хотя бы 2 красные вершины?

Решение 2 (rus). №22 (с. 206)

Для решения задачи воспользуемся методами комбинаторики и классическим определением вероятности. Вероятность события равна отношению числа благоприятных этому событию исходов к общему числу всех равновозможных исходов.

Всего на окружности отмечено $10$ красных и $7$ синих точек, то есть $10 + 7 = 17$ точек. Треугольник образуется выбором любых трех точек из этих 17. Поскольку порядок выбора вершин не имеет значения, общее число возможных треугольников (общее число исходов) можно найти с помощью числа сочетаний из 17 по 3:

$N = C_{17}^3 = \frac{17!}{3!(17-3)!} = \frac{17 \cdot 16 \cdot 15}{3 \cdot 2 \cdot 1} = 17 \cdot 8 \cdot 5 = 680$.

а) имеет ровно одну красную вершину;

Чтобы треугольник имел ровно одну красную вершину, необходимо, чтобы две другие его вершины были синими. Найдем число благоприятных исходов для этого события.

Число способов выбрать 1 красную точку из 10 имеющихся равно $C_{10}^1$.

Число способов выбрать 2 синие точки из 7 имеющихся равно $C_7^2$.

Общее число треугольников с одной красной и двумя синими вершинами (число благоприятных исходов) находится по правилу произведения:

$N_a = C_{10}^1 \cdot C_7^2 = \frac{10!}{1!(10-1)!} \cdot \frac{7!}{2!(7-2)!} = 10 \cdot \frac{7 \cdot 6}{2 \cdot 1} = 10 \cdot 21 = 210$.

Вероятность $P(a)$ того, что наугад выбранный треугольник будет иметь ровно одну красную вершину, равна:

$P(a) = \frac{N_a}{N} = \frac{210}{680} = \frac{21}{68}$.

Ответ: $\frac{21}{68}$.

б) имеет хотя бы 2 красные вершины?

Событие "треугольник имеет хотя бы 2 красные вершины" означает, что он может иметь либо 2 красные вершины, либо 3 красные вершины. Это два несовместных случая, поэтому для нахождения общего числа благоприятных исходов мы можем сложить число исходов для каждого случая.

Случай 1: Треугольник имеет ровно 2 красные вершины и 1 синюю.

Число способов выбрать 2 красные вершины из 10: $C_{10}^2 = \frac{10!}{2!(10-2)!} = \frac{10 \cdot 9}{2 \cdot 1} = 45$.

Число способов выбрать 1 синюю вершину из 7: $C_7^1 = 7$.

Число таких треугольников: $N_{2k} = C_{10}^2 \cdot C_7^1 = 45 \cdot 7 = 315$.

Случай 2: Треугольник имеет 3 красные вершины.

В этом случае все три вершины выбираются из 10 красных точек.

Число таких треугольников: $N_{3k} = C_{10}^3 = \frac{10!}{3!(10-3)!} = \frac{10 \cdot 9 \cdot 8}{3 \cdot 2 \cdot 1} = 10 \cdot 3 \cdot 4 = 120$.

Общее число благоприятных исходов для события "б" равно сумме исходов в этих двух случаях:

$N_b = N_{2k} + N_{3k} = 315 + 120 = 435$.

Вероятность $P(b)$ этого события равна:

$P(b) = \frac{N_b}{N} = \frac{435}{680}$.

Сократим полученную дробь, разделив числитель и знаменатель на 5:

$P(b) = \frac{435 \div 5}{680 \div 5} = \frac{87}{136}$.

Ответ: $\frac{87}{136}$.

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