Предмет: Математика, автор: tsere03

СРОЧНО!!!

Решите тригонометрическое уравнение cosx+sin(п/2 -x)+cos(п+x)=0

Ответы

Автор ответа: afet74

0

Ответ:

Пошаговое объяснение:

cosx+sin(п/2 -x)+cos(п+x)=0

cosx+cosx-cosx=0

cosx=0

x=π/2+πk. k∈Z

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