Номер 520, страница 153 - гдз по алгебре 9 класс учебник Солтан, Солтан

Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019

Авторы: Солтан Г. Н., Солтан А. Е., Жумадилова А. Ж.

Тип: Учебник

Издательство: Кокшетау

Год издания: 2019 - 2026

ISBN: 978-601-317-424-2

Рекомендовано Министерством образования и науки Республики Казахстан

IV. Тригонометрия. 21. Градусная и радианная меры углов и дуг - номер 520, страница 153.

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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1121}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1122}
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                  ]
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                    0 => "*"
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            "task" => array:2 [
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            "text" => "<p><strong>а)</strong> Мы знаем, что полная окружность составляет $360$ градусов ($360^\circ$) или $2\pi$ радиан. По условию, астрономическая единица "час" равна $\frac{1}{24}$ части окружности.<br>Чтобы найти, сколько градусов в 1 часе, мы умножаем градусную меру полной окружности на эту долю:<br>$1 \text{ час} = 360^\circ \cdot \frac{1}{24} = \frac{360^\circ}{24} = 15^\circ$<br>Аналогично, чтобы найти, сколько радиан в 1 часе, мы умножаем радианную меру полной окружности на ту же долю:<br>$1 \text{ час} = 2\pi \cdot \frac{1}{24} = \frac{2\pi}{24} = \frac{\pi}{12} \text{ радиан}$<br>Ответ: $1 \text{ час} = 15^\circ = \frac{\pi}{12}$ радиан.</p><p><strong>б)</strong> По условию, морская единица "румб" равна $\frac{1}{32}$ части окружности.<br>Чтобы найти, сколько градусов в 1 румбе, мы умножаем градусную меру полной окружности на эту долю:<br>$1 \text{ румб} = 360^\circ \cdot \frac{1}{32} = \frac{360^\circ}{32} = \frac{45^\circ}{4} = 11.25^\circ$<br>Чтобы найти, сколько радиан в 1 румбе, мы умножаем радианную меру полной окружности на ту же долю:<br>$1 \text{ румб} = 2\pi \cdot \frac{1}{32} = \frac{2\pi}{32} = \frac{\pi}{16} \text{ радиан}$<br>Ответ: $1 \text{ румб} = 11.25^\circ = \frac{\pi}{16}$ радиан.</p>"
          ]
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            "id" => 1554121
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1116}
            "task" => array:2 [
              "refs" => "1108250"
              "type" => "task"
            ]
            "text" => "<p><strong>а)</strong> Мы знаем, что полная окружность составляет $360$ градусов ($360^\circ$) или $2\pi$ радиан. По условию, астрономическая единица "час" равна $\frac{1}{24}$ части окружности.<br>Чтобы найти, сколько градусов в 1 часе, мы умножаем градусную меру полной окружности на эту долю:<br>$1 \text{ час} = 360^\circ \cdot \frac{1}{24} = \frac{360^\circ}{24} = 15^\circ$<br>Аналогично, чтобы найти, сколько радиан в 1 часе, мы умножаем радианную меру полной окружности на ту же долю:<br>$1 \text{ час} = 2\pi \cdot \frac{1}{24} = \frac{2\pi}{24} = \frac{\pi}{12} \text{ радиан}$<br>Ответ: $1 \text{ час} = 15^\circ = \frac{\pi}{12}$ радиан.</p><p><strong>б)</strong> По условию, морская единица "румб" равна $\frac{1}{32}$ части окружности.<br>Чтобы найти, сколько градусов в 1 румбе, мы умножаем градусную меру полной окружности на эту долю:<br>$1 \text{ румб} = 360^\circ \cdot \frac{1}{32} = \frac{360^\circ}{32} = \frac{45^\circ}{4} = 11.25^\circ$<br>Чтобы найти, сколько радиан в 1 румбе, мы умножаем радианную меру полной окружности на ту же долю:<br>$1 \text{ румб} = 2\pi \cdot \frac{1}{32} = \frac{2\pi}{32} = \frac{\pi}{16} \text{ радиан}$<br>Ответ: $1 \text{ румб} = 11.25^\circ = \frac{\pi}{16}$ радиан.</p>"
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          #attributes: array:50 [
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            "created_at" => "2026-04-10 13:58:26"
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1125
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                  #attributes: array:10 [
                    "id" => 6471
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Алгебра"
                    "field_abbreviated_name" => null
                    "field_cases" => array:6 [
                      "field_accusative_case" => "алгебру"
                      "field_creative_case" => "алгеброй"
                      "field_dative_case" => "алгебре"
                      "field_genitive_case" => "алгебры"
                      "field_nominative_case" => "алгебра"
                      "field_prepositional_case" => "алгебре"
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                    "field_subject_type" => "technical_subject"
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Алгебра"
                    "field_abbreviated_name" => null
                    "field_cases" => array:6 [
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                      "field_genitive_case" => "алгебры"
                      "field_nominative_case" => "алгебра"
                      "field_prepositional_case" => "алгебре"
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                    "field_subject_type" => "technical_subject"
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            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1127
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                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
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                  #with: []
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                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 5458
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "9"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "девятый"
                      "field_creative_case" => "девятым"
                      "field_dative_case" => "девятому"
                      "field_genitive_case" => "девятого"
                      "field_nominative_case" => "девятый"
                      "field_prepositional_case" => "девятом"
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                    "field_translit" => "devjatyj"
                  ]
                  #original: array:6 [
                    "id" => 5458
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "9"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "девятый"
                      "field_creative_case" => "девятым"
                      "field_dative_case" => "девятому"
                      "field_genitive_case" => "девятого"
                      "field_nominative_case" => "девятый"
                      "field_prepositional_case" => "девятом"
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                    "field_translit" => "devjatyj"
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              ]
              #escapeWhenCastingToString: false
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            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1129
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                0 => App\Models\Term {#1130
                  #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" => 7002
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Кокшетау"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "Kokshetau"
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Кокшетау"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
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                    "field_translit" => "Kokshetau"
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              ]
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            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1131
              #items: array:3 [
                0 => App\Models\Term {#1132
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:12 [
                    "id" => 7003
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Солтан"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Генадий"
                    "field_patronymic" => "Николаевич"
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Солтан"
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                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Генадий"
                    "field_patronymic" => "Николаевич"
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                  ]
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                    0 => "*"
                  ]
                }
                1 => App\Models\Term {#1133
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:12 [
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Солтан"
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                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Алла"
                    "field_patronymic" => "Евгеньевна"
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                  ]
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Алла"
                    "field_patronymic" => "Евгеньевна"
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                    0 => "*"
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                }
                2 => App\Models\Term {#1134
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #perPage: 15
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Аманбала"
                    "field_patronymic" => "Жумадиловна"
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                  ]
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                    "name" => "Жумадилова"
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                    "field_patronymic" => "Жумадиловна"
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              #items: []
              #escapeWhenCastingToString: false
            }
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              #items: array:1 [
                0 => App\Models\Term {#1137
                  #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 [
                      "field_accusative_case" => "учебник"
                      "field_creative_case" => "учебником"
                      "field_dative_case" => "учебнику"
                      "field_genitive_case" => "учебника"
                      "field_nominative_case" => "учебник"
                      "field_prepositional_case" => "учебнике"
                    ]
                    "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 [
                      "field_accusative_case" => "учебник"
                      "field_creative_case" => "учебником"
                      "field_dative_case" => "учебнику"
                      "field_genitive_case" => "учебника"
                      "field_nominative_case" => "учебник"
                      "field_prepositional_case" => "учебнике"
                    ]
                    "field_plural_form" => null
                    "field_short_name" => null
                    "field_short_name_foreign" => null
                    "field_translit" => "uchebnik"
                  ]
                  #changes: []
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                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1138
              #items: array:1 [
                0 => App\Models\Term {#1139
                  #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 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "kazakhstan"
                  ]
                  #original: array:6 [
                    "id" => 6994
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Казахстан"
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                      "field_accusative_case" => null
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                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "kazakhstan"
                  ]
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                  #dateFormat: null
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                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1140
              #items: array:1 [
                0 => App\Models\Term {#1141
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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№520 (с. 153)
Условие. №520 (с. 153)
скриншот условия
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 153, номер 520, Условие

520. a) В астрономии для определения положения небесных тел используется единица измерения углов — час, равная $\frac{1}{24}$ части окружности. Выразите угол в 1 час в градусах и радианах.

б) В некоторых морских компасах окружность разделена на румбы. Румб — $\frac{1}{32}$ часть окружности. Чему равен 1 румб в радианах и градусах?

Компас

Решение. №520 (с. 153)
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 153, номер 520, Решение
Решение 2 (rus). №520 (с. 153)

а) Мы знаем, что полная окружность составляет $360$ градусов ($360^\circ$) или $2\pi$ радиан. По условию, астрономическая единица "час" равна $\frac{1}{24}$ части окружности.
Чтобы найти, сколько градусов в 1 часе, мы умножаем градусную меру полной окружности на эту долю:
$1 \text{ час} = 360^\circ \cdot \frac{1}{24} = \frac{360^\circ}{24} = 15^\circ$
Аналогично, чтобы найти, сколько радиан в 1 часе, мы умножаем радианную меру полной окружности на ту же долю:
$1 \text{ час} = 2\pi \cdot \frac{1}{24} = \frac{2\pi}{24} = \frac{\pi}{12} \text{ радиан}$
Ответ: $1 \text{ час} = 15^\circ = \frac{\pi}{12}$ радиан.

б) По условию, морская единица "румб" равна $\frac{1}{32}$ части окружности.
Чтобы найти, сколько градусов в 1 румбе, мы умножаем градусную меру полной окружности на эту долю:
$1 \text{ румб} = 360^\circ \cdot \frac{1}{32} = \frac{360^\circ}{32} = \frac{45^\circ}{4} = 11.25^\circ$
Чтобы найти, сколько радиан в 1 румбе, мы умножаем радианную меру полной окружности на ту же долю:
$1 \text{ румб} = 2\pi \cdot \frac{1}{32} = \frac{2\pi}{32} = \frac{\pi}{16} \text{ радиан}$
Ответ: $1 \text{ румб} = 11.25^\circ = \frac{\pi}{16}$ радиан.

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