Предмет: Математика, автор: finix31

срочно помогите пожалуйста математика ​

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Автор ответа: Chariel
0

Ответ:

A)

Пошаговое объяснение:

Ну, f(x) возвращает значение x под корнем, тогда f(g(x))=\sqrt{g(x)} ну а g(x) дан в условии, просто подставляешь его под корень и получаешь \sqrt{\frac{2}{x+1}

Chariel: Ответ вариант А) y(x)=(2/(x+1))^0,5
Chariel: Я вроде сделал всё правильно, функция f(x) возвращает аргумент под квадратным корнем, к примеру: f(x)=x^0,5 или же f(x+1)=(x+1)^0,5. Степень 0,5 это по сути тоже самое, что и квадратный корень. У нас аргумент в функции f(x) является g(x) равный 2/(x+1), тогда функция f(x) вернёт нам значение g(x)=2/(x+1) под корнем
Автор ответа: сок111213
0

y(x) = f(g(x)) \\ f(x) = \sqrt{x} \\ g(x) = \frac{2}{x + 1} \\ y(x) = \sqrt{ \frac{2}{x + 1} }

Ответ: А

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