Номер 595, страница 177 - 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. 23. Тригонометрические функции и их свойства - номер 595, страница 177.

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                        0 => App\Models\Term {#1115
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                        0 => App\Models\Term {#1118
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                          #table: "terms"
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                          #attributes: array:6 [
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                        0 => App\Models\Term {#1120
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                          #table: "terms"
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                    "field_author" => Illuminate\Database\Eloquent\Collection {#1121
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                        0 => App\Models\Term {#1122
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                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
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                            "field_foreign_lang_surname" => null
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                            "field_name" => "Генадий"
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                            0 => "*"
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                        }
                        1 => App\Models\Term {#1123
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
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                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 7004
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Алла"
                            "field_patronymic" => "Евгеньевна"
                            "field_surname_rp" => null
                          ]
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                            "field_foreign_lang_patronymic" => null
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                            "field_name" => "Алла"
                            "field_patronymic" => "Евгеньевна"
                            "field_surname_rp" => null
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                          #dateFormat: null
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                          #visible: []
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                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        2 => App\Models\Term {#1124
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
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                          #withCount: []
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                          #attributes: array:12 [
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                            "field_bio" => null
                            "field_degree_rp" => null
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                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Аманбала"
                            "field_patronymic" => "Жумадиловна"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
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                            "updated_at" => null
                            "name" => "Жумадилова"
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                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Аманбала"
                            "field_patronymic" => "Жумадиловна"
                            "field_surname_rp" => null
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                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1125
                      #items: []
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                    }
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                      #items: array:1 [
                        0 => App\Models\Term {#1127
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
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                          #attributes: array:10 [
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Учебник"
                            "field_book_type_foreign" => null
                            "field_cases" => array:6 [
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                              "field_creative_case" => "учебником"
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                              "field_nominative_case" => "учебник"
                              "field_prepositional_case" => "учебнике"
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                            "field_plural_form" => null
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                            "field_translit" => "uchebnik"
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                              "field_creative_case" => "учебником"
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                              "field_nominative_case" => "учебник"
                              "field_prepositional_case" => "учебнике"
                            ]
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                            "field_short_name_foreign" => null
                            "field_translit" => "uchebnik"
                          ]
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                          #relations: []
                          #touches: []
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                          #hidden: []
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                      ]
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                    "field_country" => Illuminate\Database\Eloquent\Collection {#1128
                      #items: array:1 [
                        0 => App\Models\Term {#1129
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
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                          #attributes: array:6 [
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                            "created_at" => "2026-04-10 13:58:26"
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                            "field_translit" => "kazakhstan"
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                    "field_city" => Illuminate\Database\Eloquent\Collection {#1130
                      #items: array:1 [
                        0 => App\Models\Term {#1131
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
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                          #attributes: array:6 [
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматы"
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                            "field_translit" => "almaty"
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                      ]
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                    "field_series" => Illuminate\Database\Eloquent\Collection {#1132
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1133
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1134
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1135
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1136
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1137
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для учащихся 9 класса общеобразовательных школ"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1291"
                    "field_priority" => "4"
                    "field_default_folder" => "/algebra_09/soltan-u19/"
                    "field_isbn" => "978-601-317-424-2"
                    "field_cover" => array:1 [
                      0 => "/media/algebra_09/soltan-u19/covers/cover1.webp?ts=1752140452"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/algebra_09/soltan-u19/covers/cover1.webp?ts=1752140452"
                        "alt" => ""
                        "width" => "1940"
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                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1138
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1139
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1140
                      #items: []
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            "text" => "<p><strong>а)</strong> Область определения функции — это множество всех допустимых значений аргумента $x$, при которых функция имеет смысл.<br>Для функции $y = \sin(2x)$, аргументом синуса является выражение $2x$.<br>Функция синус ($ \sin(t) $) определена для любого действительного значения своего аргумента $t$.<br>Выражение $2x$ является линейной функцией, которая определена для всех действительных чисел $x$.<br>Следовательно, никаких ограничений на переменную $x$ не накладывается, и функция $y = \sin(2x)$ определена для любого $x$.<br>Область определения — множество всех действительных чисел.<br>Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).</p><p><strong>б)</strong> Рассмотрим функцию $y = \cos(\frac{1}{2}x)$.<br>Аргументом косинуса является выражение $\frac{1}{2}x$.<br>Функция косинус ($ \cos(t) $) определена для любого действительного значения своего аргумента $t$.<br>Выражение $\frac{1}{2}x$ определено для всех действительных чисел $x$.<br>Таким образом, ограничений на $x$ нет.<br>Область определения — множество всех действительных чисел.<br>Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).</p><p><strong>в)</strong> Для функции $y = \cos(x^2)$.<br>Аргументом косинуса является выражение $x^2$.<br>Функция косинус ($ \cos(t) $) определена для любого действительного значения своего аргумента $t$.<br>Выражение $x^2$ является квадратичной функцией, которая определена для всех действительных чисел $x$.<br>Следовательно, область определения исходной функции совпадает с множеством всех действительных чисел.<br>Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).</p><p><strong>г)</strong> Рассмотрим функцию $y = \sin(\frac{1}{x})$.<br>Аргументом синуса является выражение $\frac{1}{x}$.<br>Функция синус ($ \sin(t) $) определена для любого действительного значения своего аргумента $t$. Однако, мы должны учитывать область определения самого аргумента.<br>Выражение $\frac{1}{x}$ является дробью, и оно определено только тогда, когда его знаменатель не равен нулю.<br>Следовательно, необходимо выполнить условие: $x \neq 0$.<br>Таким образом, область определения функции $y = \sin(\frac{1}{x})$ — это все действительные числа, кроме нуля.<br>Ответ: $x \neq 0$ (или $D(y) = (-\infty; 0) \cup (0; +\infty)$).</p>"
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            "text" => "<p><strong>а)</strong> Область определения функции — это множество всех допустимых значений аргумента $x$, при которых функция имеет смысл.<br>Для функции $y = \sin(2x)$, аргументом синуса является выражение $2x$.<br>Функция синус ($ \sin(t) $) определена для любого действительного значения своего аргумента $t$.<br>Выражение $2x$ является линейной функцией, которая определена для всех действительных чисел $x$.<br>Следовательно, никаких ограничений на переменную $x$ не накладывается, и функция $y = \sin(2x)$ определена для любого $x$.<br>Область определения — множество всех действительных чисел.<br>Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).</p><p><strong>б)</strong> Рассмотрим функцию $y = \cos(\frac{1}{2}x)$.<br>Аргументом косинуса является выражение $\frac{1}{2}x$.<br>Функция косинус ($ \cos(t) $) определена для любого действительного значения своего аргумента $t$.<br>Выражение $\frac{1}{2}x$ определено для всех действительных чисел $x$.<br>Таким образом, ограничений на $x$ нет.<br>Область определения — множество всех действительных чисел.<br>Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).</p><p><strong>в)</strong> Для функции $y = \cos(x^2)$.<br>Аргументом косинуса является выражение $x^2$.<br>Функция косинус ($ \cos(t) $) определена для любого действительного значения своего аргумента $t$.<br>Выражение $x^2$ является квадратичной функцией, которая определена для всех действительных чисел $x$.<br>Следовательно, область определения исходной функции совпадает с множеством всех действительных чисел.<br>Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).</p><p><strong>г)</strong> Рассмотрим функцию $y = \sin(\frac{1}{x})$.<br>Аргументом синуса является выражение $\frac{1}{x}$.<br>Функция синус ($ \sin(t) $) определена для любого действительного значения своего аргумента $t$. Однако, мы должны учитывать область определения самого аргумента.<br>Выражение $\frac{1}{x}$ является дробью, и оно определено только тогда, когда его знаменатель не равен нулю.<br>Следовательно, необходимо выполнить условие: $x \neq 0$.<br>Таким образом, область определения функции $y = \sin(\frac{1}{x})$ — это все действительные числа, кроме нуля.<br>Ответ: $x \neq 0$ (или $D(y) = (-\infty; 0) \cup (0; +\infty)$).</p>"
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№595 (с. 177)
Условие. №595 (с. 177)
скриншот условия
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 177, номер 595, Условие

595. Найдите область определения функции:

а) $y = \sin 2x;$

в) $y = \cos x^2;$

б) $y = \cos \frac{1}{2}x;$

г) $y = \sin \frac{1}{x}.$

Решение. №595 (с. 177)
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 177, номер 595, Решение
Решение 2 (rus). №595 (с. 177)

а) Область определения функции — это множество всех допустимых значений аргумента $x$, при которых функция имеет смысл.
Для функции $y = \sin(2x)$, аргументом синуса является выражение $2x$.
Функция синус ($ \sin(t) $) определена для любого действительного значения своего аргумента $t$.
Выражение $2x$ является линейной функцией, которая определена для всех действительных чисел $x$.
Следовательно, никаких ограничений на переменную $x$ не накладывается, и функция $y = \sin(2x)$ определена для любого $x$.
Область определения — множество всех действительных чисел.
Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).

б) Рассмотрим функцию $y = \cos(\frac{1}{2}x)$.
Аргументом косинуса является выражение $\frac{1}{2}x$.
Функция косинус ($ \cos(t) $) определена для любого действительного значения своего аргумента $t$.
Выражение $\frac{1}{2}x$ определено для всех действительных чисел $x$.
Таким образом, ограничений на $x$ нет.
Область определения — множество всех действительных чисел.
Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).

в) Для функции $y = \cos(x^2)$.
Аргументом косинуса является выражение $x^2$.
Функция косинус ($ \cos(t) $) определена для любого действительного значения своего аргумента $t$.
Выражение $x^2$ является квадратичной функцией, которая определена для всех действительных чисел $x$.
Следовательно, область определения исходной функции совпадает с множеством всех действительных чисел.
Ответ: $x \in R$ (или $D(y) = (-\infty; +\infty)$).

г) Рассмотрим функцию $y = \sin(\frac{1}{x})$.
Аргументом синуса является выражение $\frac{1}{x}$.
Функция синус ($ \sin(t) $) определена для любого действительного значения своего аргумента $t$. Однако, мы должны учитывать область определения самого аргумента.
Выражение $\frac{1}{x}$ является дробью, и оно определено только тогда, когда его знаменатель не равен нулю.
Следовательно, необходимо выполнить условие: $x \neq 0$.
Таким образом, область определения функции $y = \sin(\frac{1}{x})$ — это все действительные числа, кроме нуля.
Ответ: $x \neq 0$ (или $D(y) = (-\infty; 0) \cup (0; +\infty)$).

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