Предмет: Алгебра, автор: gyjufgjdtyujsfjhk

Вычислите 2sin 15° sin 75° ( з поясненням)

Ответы

Автор ответа: bk52gmqhfh

1

Ответ:

2*1/2*(cos(-60)-cos(90)) = 2*1/2*(1/2-0) = 1/2

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