Номер 809, страница 193 - гдз по геометрии 10-11 класс учебник Атанасян, Бутузов

Геометрия, 10-11 класс Учебник, авторы: Атанасян Левон Сергеевич, Бутузов Валентин Фёдорович, Кадомцев Сергей Борисович, Позняк Эдуард Генрихович, Киселёва Людмила Сергеевна, издательство Просвещение, Москва, 2019, коричневого цвета

Авторы: Атанасян Л. С., Бутузов В. Ф., Кадомцев С. Б., Позняк Э. Г., Киселёва Л. С.

Тип: Учебник

Издательство: Просвещение

Год издания: 2019 - 2026

Уровень обучения: базовый и углублённый

Цвет обложки: коричневый с ромбами

ISBN: 978-5-09-103606-0 (2023)

Допущено Министерством просвещения Российской Федерации

Математика: алгебра и начала математического анализа, геометрия

Глава 7. Метод координат в пространстве. Движения. Параграф 3. Движения, дополнительные задачи - номер 809, страница 193.

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                      ]
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                    }
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                        0 => App\Models\Term {#1065
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                    }
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                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1072
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                        0 => App\Models\Term {#1073
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                      ]
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                        0 => App\Models\Term {#1075
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                            "field_cases" => array:6 [ …6]
                            "field_color" => null
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                        0 => App\Models\Term {#1077
                          #connection: "mysql"
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                            "created_at" => "2026-04-10 13:58:26"
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                      ]
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                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1078
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                    "field_link_to_source" => null
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                      ]
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                    }
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                    }
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                    }
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                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1082
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                        0 => App\Models\Term {#1083
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                            "created_at" => "2026-04-10 13:58:26"
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                            "name" => "коричневый"
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                          ]
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              ]
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            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1084
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            }
          ]
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            "field_branch_order" => "7"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1050}
            "field_page_start" => "160"
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            "field_display_task_interval" => "0"
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            "field_branch_title_in_content" => "0"
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            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1086}
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          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1121
      #items: array:2 [
        0 => App\Models\Branch {#1129
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #perPage: 15
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          #attributes: array:24 [
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            "created_at" => "2026-04-10 13:58:26"
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            "field_display_title" => "Метод координат в пространстве. Движения"
            "field_branch_order" => "7"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1130
              #items: array:1 [
                0 => App\Models\Term {#1047}
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "160"
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            "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 {#1131
              #items: array:1 [
                0 => App\Models\Book {#1049}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1132
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 744405
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Метод координат в пространстве. Движения"
            "field_branch_order" => "7"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1130}
            "field_page_start" => "160"
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            "field_description_top" => null
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            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1131}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1132}
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            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1133
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
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          #attributes: array:24 [
            "id" => 744410
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Движения, дополнительные задачи"
            "field_branch_order" => "3"
            "field_url" => null
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              #items: array:1 [
                0 => App\Models\Term {#1134
                  #connection: "mysql"
                  #table: "terms"
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                  #keyType: "int"
                  +incrementing: false
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                  #withCount: []
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                  #attributes: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
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                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
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                  ]
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                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
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            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1135
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                0 => App\Models\Branch {#1045}
              ]
              #escapeWhenCastingToString: false
            }
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            "id" => 744410
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
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            "field_branch_order" => "3"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1137}
            "field_page_start" => "187"
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            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1136}
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            0 => "*"
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      ]
      #escapeWhenCastingToString: false
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    "content" => Illuminate\Database\Eloquent\Collection {#1105
      #items: array:3 [
        0 => App\Models\Element {#1096
          #connection: "mysql"
          #table: "elements"
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          #keyType: "int"
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            "id" => 940009
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1087
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                0 => App\Models\Edition {#1095
                  #connection: "mysql"
                  #table: "editions"
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                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 2315
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1093 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
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                  ]
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                    "updated_at" => null
                    "title" => "Условие"
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                  ]
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                    0 => "*"
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              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
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            "text" => "<p> <b>809.</b> Два равных цилиндра, высоты которых больше их диаметров, расположены так, что их оси пересекаются под прямым углом и точка пересечения осей равноудалена от оснований цилиндров. Найдите объём общей части этих цилиндров, если радиус каждого из них равен 1 см. </p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "809-1.jpg"
                "alt" => null
                "width" => "1559"
                "height" => 284
                "path" => "/media/geometrija_10/atanasjan-u23/0-00/809-1.webp?ts=1739436917"
              ]
            ]
          ]
          #original: array:7 [
            "id" => 940009
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1087}
            "task" => array:2 [
              "refs" => "745224"
              "type" => "task"
            ]
            "text" => "<p> <b>809.</b> Два равных цилиндра, высоты которых больше их диаметров, расположены так, что их оси пересекаются под прямым углом и точка пересечения осей равноудалена от оснований цилиндров. Найдите объём общей части этих цилиндров, если радиус каждого из них равен 1 см. </p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "809-1.jpg"
                "alt" => null
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                "height" => 284
                "path" => "/media/geometrija_10/atanasjan-u23/0-00/809-1.webp?ts=1739436917"
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            0 => "*"
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        1 => App\Models\Element {#1085
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #attributes: array:6 [
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            "created_at" => "2026-04-10 13:58:26"
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              #items: array:1 [
                0 => App\Models\Edition {#1088
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
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                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 2317
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1034 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1039 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1120 …2}
                    "field_content_source" => null
                  ]
                  #original: array:21 [
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1041 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "image"
                    "field_page_content_mode" => ""
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                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "solution"
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                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1034 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1039 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1120 …2}
                    "field_content_source" => null
                  ]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
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              #escapeWhenCastingToString: false
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            "task" => array:2 [
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              "type" => "task"
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            "img" => array:1 [
              0 => array:5 [
                "name" => "809-1.png"
                "alt" => null
                "width" => "694"
                "height" => 3476
                "path" => "/media/geometrija_10/atanasjan-u23/2-00/809-1.webp?ts=1739441717"
              ]
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          ]
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            "id" => 942770
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1124}
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              "refs" => "745224"
              "type" => "task"
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                "name" => "809-1.png"
                "alt" => null
                "width" => "694"
                "height" => 3476
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            0 => "*"
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        2 => App\Models\Element {#1119
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #attributes: array:6 [
            "id" => 1352537
            "created_at" => "2026-04-10 13:58:26"
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                0 => App\Models\Edition {#1128
                  #connection: "mysql"
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                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #withCount: []
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                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 5120
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 6"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1125 …2}
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
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                    "field_edition_type" => "solution"
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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1138 …2}
                    "field_process_formula" => "katex"
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                  #original: array:21 [
                    "id" => 5120
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 6"
                    "field_order" => "7"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1125 …2}
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                    0 => "*"
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              #escapeWhenCastingToString: false
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            "task" => array:2 [
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            "text" => "<p>Для решения этой задачи воспользуемся методом поперечных сечений. Введем декартову систему координат $Oxyz$ с началом в точке пересечения осей цилиндров.</p><p>Пусть ось первого цилиндра совпадает с осью $Oz$, а ось второго — с осью $Oy$. Поскольку радиус каждого цилиндра равен $R=1$ см, их уравнения будут следующими:</p><ul><li>Первый цилиндр (ось $Oz$): $x^2 + y^2 \le R^2 \implies x^2 + y^2 \le 1$</li> <li>Второй цилиндр (ось $Oy$): $x^2 + z^2 \le R^2 \implies x^2 + z^2 \le 1$</li></ul><p>Общая часть этих двух цилиндров (тело их пересечения) определяется системой неравенств:</p>$$ \begin{cases} x^2 + y^2 \le 1 \\ x^2 + z^2 \le 1 \end{cases} $$<p>Чтобы найти объем этого тела, рассмотрим его сечение плоскостью, перпендикулярной оси $Ox$, на некотором расстоянии $x$ от начала координат, где $x \in [-1, 1]$.</p><p>Для фиксированного значения $x$ из системы неравенств получаем:</p>$$ y^2 \le 1 - x^2 \implies -\sqrt{1-x^2} \le y \le \sqrt{1-x^2} $$ $$ z^2 \le 1 - x^2 \implies -\sqrt{1-x^2} \le z \le \sqrt{1-x^2} $$<p>Эти два неравенства описывают в плоскости сечения квадрат со стороной $a(x)$, длина которой равна:</p>$$ a(x) = \sqrt{1-x^2} - (-\sqrt{1-x^2}) = 2\sqrt{1-x^2} $$<p>Площадь этого квадратного сечения $S(x)$ равна:</p>$$ S(x) = (a(x))^2 = (2\sqrt{1-x^2})^2 = 4(1 - x^2) $$<p>Объём $V$ общей части цилиндров можно найти, проинтегрировав площадь сечения $S(x)$ по переменной $x$ в пределах от $-R$ до $R$, то есть от $-1$ до $1$.</p>$$ V = \int_{-1}^{1} S(x) \,dx = \int_{-1}^{1} 4(1 - x^2) \,dx $$<p>Вычислим этот интеграл:</p>$$ V = 4 \int_{-1}^{1} (1 - x^2) \,dx = 4 \left[ x - \frac{x^3}{3} \right]_{-1}^{1} $$<p>Подставляем пределы интегрирования:</p>$$ V = 4 \left( \left(1 - \frac{1^3}{3}\right) - \left(-1 - \frac{(-1)^3}{3}\right) \right) = 4 \left( \left(1 - \frac{1}{3}\right) - \left(-1 - \frac{-1}{3}\right) \right) $$ $$ V = 4 \left( \frac{2}{3} - \left(-1 + \frac{1}{3}\right) \right) = 4 \left( \frac{2}{3} - \left(-\frac{2}{3}\right) \right) = 4 \left( \frac{2}{3} + \frac{2}{3} \right) = 4 \cdot \frac{4}{3} = \frac{16}{3} $$<p>Таким образом, объём общей части двух цилиндров составляет $ \frac{16}{3} $ см?.</p><p><strong>Ответ:</strong> $ \frac{16}{3} \text{ см}^3 $.</p>"
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            "text" => "<p>Для решения этой задачи воспользуемся методом поперечных сечений. Введем декартову систему координат $Oxyz$ с началом в точке пересечения осей цилиндров.</p><p>Пусть ось первого цилиндра совпадает с осью $Oz$, а ось второго — с осью $Oy$. Поскольку радиус каждого цилиндра равен $R=1$ см, их уравнения будут следующими:</p><ul><li>Первый цилиндр (ось $Oz$): $x^2 + y^2 \le R^2 \implies x^2 + y^2 \le 1$</li> <li>Второй цилиндр (ось $Oy$): $x^2 + z^2 \le R^2 \implies x^2 + z^2 \le 1$</li></ul><p>Общая часть этих двух цилиндров (тело их пересечения) определяется системой неравенств:</p>$$ \begin{cases} x^2 + y^2 \le 1 \\ x^2 + z^2 \le 1 \end{cases} $$<p>Чтобы найти объем этого тела, рассмотрим его сечение плоскостью, перпендикулярной оси $Ox$, на некотором расстоянии $x$ от начала координат, где $x \in [-1, 1]$.</p><p>Для фиксированного значения $x$ из системы неравенств получаем:</p>$$ y^2 \le 1 - x^2 \implies -\sqrt{1-x^2} \le y \le \sqrt{1-x^2} $$ $$ z^2 \le 1 - x^2 \implies -\sqrt{1-x^2} \le z \le \sqrt{1-x^2} $$<p>Эти два неравенства описывают в плоскости сечения квадрат со стороной $a(x)$, длина которой равна:</p>$$ a(x) = \sqrt{1-x^2} - (-\sqrt{1-x^2}) = 2\sqrt{1-x^2} $$<p>Площадь этого квадратного сечения $S(x)$ равна:</p>$$ S(x) = (a(x))^2 = (2\sqrt{1-x^2})^2 = 4(1 - x^2) $$<p>Объём $V$ общей части цилиндров можно найти, проинтегрировав площадь сечения $S(x)$ по переменной $x$ в пределах от $-R$ до $R$, то есть от $-1$ до $1$.</p>$$ V = \int_{-1}^{1} S(x) \,dx = \int_{-1}^{1} 4(1 - x^2) \,dx $$<p>Вычислим этот интеграл:</p>$$ V = 4 \int_{-1}^{1} (1 - x^2) \,dx = 4 \left[ x - \frac{x^3}{3} \right]_{-1}^{1} $$<p>Подставляем пределы интегрирования:</p>$$ V = 4 \left( \left(1 - \frac{1^3}{3}\right) - \left(-1 - \frac{(-1)^3}{3}\right) \right) = 4 \left( \left(1 - \frac{1}{3}\right) - \left(-1 - \frac{-1}{3}\right) \right) $$ $$ V = 4 \left( \frac{2}{3} - \left(-1 + \frac{1}{3}\right) \right) = 4 \left( \frac{2}{3} - \left(-\frac{2}{3}\right) \right) = 4 \left( \frac{2}{3} + \frac{2}{3} \right) = 4 \cdot \frac{4}{3} = \frac{16}{3} $$<p>Таким образом, объём общей части двух цилиндров составляет $ \frac{16}{3} $ см?.</p><p><strong>Ответ:</strong> $ \frac{16}{3} \text{ см}^3 $.</p>"
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№809 (с. 193)
Условие. №809 (с. 193)
скриншот условия
Геометрия, 10-11 класс Учебник, авторы: Атанасян Левон Сергеевич, Бутузов Валентин Фёдорович, Кадомцев Сергей Борисович, Позняк Эдуард Генрихович, Киселёва Людмила Сергеевна, издательство Просвещение, Москва, 2019, коричневого цвета, страница 193, номер 809, Условие

809. Два равных цилиндра, высоты которых больше их диаметров, расположены так, что их оси пересекаются под прямым углом и точка пересечения осей равноудалена от оснований цилиндров. Найдите объём общей части этих цилиндров, если радиус каждого из них равен 1 см.

Решение 2. №809 (с. 193)
Геометрия, 10-11 класс Учебник, авторы: Атанасян Левон Сергеевич, Бутузов Валентин Фёдорович, Кадомцев Сергей Борисович, Позняк Эдуард Генрихович, Киселёва Людмила Сергеевна, издательство Просвещение, Москва, 2019, коричневого цвета, страница 193, номер 809, Решение 2
Решение 6. №809 (с. 193)

Для решения этой задачи воспользуемся методом поперечных сечений. Введем декартову систему координат $Oxyz$ с началом в точке пересечения осей цилиндров.

Пусть ось первого цилиндра совпадает с осью $Oz$, а ось второго — с осью $Oy$. Поскольку радиус каждого цилиндра равен $R=1$ см, их уравнения будут следующими:

  • Первый цилиндр (ось $Oz$): $x^2 + y^2 \le R^2 \implies x^2 + y^2 \le 1$
  • Второй цилиндр (ось $Oy$): $x^2 + z^2 \le R^2 \implies x^2 + z^2 \le 1$

Общая часть этих двух цилиндров (тело их пересечения) определяется системой неравенств:

$$ \begin{cases} x^2 + y^2 \le 1 \\ x^2 + z^2 \le 1 \end{cases} $$

Чтобы найти объем этого тела, рассмотрим его сечение плоскостью, перпендикулярной оси $Ox$, на некотором расстоянии $x$ от начала координат, где $x \in [-1, 1]$.

Для фиксированного значения $x$ из системы неравенств получаем:

$$ y^2 \le 1 - x^2 \implies -\sqrt{1-x^2} \le y \le \sqrt{1-x^2} $$ $$ z^2 \le 1 - x^2 \implies -\sqrt{1-x^2} \le z \le \sqrt{1-x^2} $$

Эти два неравенства описывают в плоскости сечения квадрат со стороной $a(x)$, длина которой равна:

$$ a(x) = \sqrt{1-x^2} - (-\sqrt{1-x^2}) = 2\sqrt{1-x^2} $$

Площадь этого квадратного сечения $S(x)$ равна:

$$ S(x) = (a(x))^2 = (2\sqrt{1-x^2})^2 = 4(1 - x^2) $$

Объём $V$ общей части цилиндров можно найти, проинтегрировав площадь сечения $S(x)$ по переменной $x$ в пределах от $-R$ до $R$, то есть от $-1$ до $1$.

$$ V = \int_{-1}^{1} S(x) \,dx = \int_{-1}^{1} 4(1 - x^2) \,dx $$

Вычислим этот интеграл:

$$ V = 4 \int_{-1}^{1} (1 - x^2) \,dx = 4 \left[ x - \frac{x^3}{3} \right]_{-1}^{1} $$

Подставляем пределы интегрирования:

$$ V = 4 \left( \left(1 - \frac{1^3}{3}\right) - \left(-1 - \frac{(-1)^3}{3}\right) \right) = 4 \left( \left(1 - \frac{1}{3}\right) - \left(-1 - \frac{-1}{3}\right) \right) $$ $$ V = 4 \left( \frac{2}{3} - \left(-1 + \frac{1}{3}\right) \right) = 4 \left( \frac{2}{3} - \left(-\frac{2}{3}\right) \right) = 4 \left( \frac{2}{3} + \frac{2}{3} \right) = 4 \cdot \frac{4}{3} = \frac{16}{3} $$

Таким образом, объём общей части двух цилиндров составляет $ \frac{16}{3} $ см?.

Ответ: $ \frac{16}{3} \text{ см}^3 $.

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