Предмет: Алгебра, автор: id187850377

Найдите значение выражения 12tg143°*tg127°-9

Ответы

Автор ответа: Plotting

1

12tg(180-37)*tg(90+37)-9=-12tg37*(-ctg37)-9=-12*(-1)-9=12-9=3

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