Предмет: Алгебра, автор: nik812

найдите значение выражения 4 cos 90° - 6 sin 30°

Ответы

Автор ответа: Djasurxon

0

cos 90°=0
sin30°=1/2
4*0-6*1/2=0-3=-3

Автор ответа: 1Nikitin1

0

Косинус 90 равен 0, синус 30 равен 1/2
4*0-6×1/2=-3

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