Предмет: Алгебра, автор: Slavik19981

Найти период : y=cos 4x/5 ;T-?

Ответы

Автор ответа: mukus13
4
T= \frac{T_0}{/k/}

T= \frac{2 \pi }{ \frac{4}{5} } = \frac{5 \pi }{2} =2.5 \pi
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