Предмет: Алгебра, автор: marinakisca0

упростите выражение:
sin(4п-x)cos(270-x)+cos(p+x)sin(270+x)-1

Ответы

Автор ответа: baida03

sin(4П-х)*cos(270-x)+cos(П+х)*sin(270+x)-1=-sin x*(-sin x)+(-cos x)*(-cos x)-1=sin^2 x+cos^2 x-1=1-1=0

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упростите выражение: sin(4п-x)*cos(270-x)+cos(p+x)*sin(270+x)-1

Ответы

упростите выражение:
sin(4п-x)cos(270-x)+cos(p+x)sin(270+x)-1