Предмет: Математика, автор: Sashaaaaa11

Найдите все значения х при которых значение выражения cos(x/2+п/5) равно 1

Ответы

Автор ответа: Tilen

2

Ответ:

Пошаговое объяснение:

cos(x/2+п/5)=1

x/2+п/5=2пk, k∈Z

x/2=-п/5+2пk, k∈Z

x=-2/5п+4пk, k∈Z

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