Предмет: Алгебра, автор: RanDomAizer11

решить 1-2sinacosa/sinacosa

Ответы

Автор ответа: Universalka

0

$frac{1 - 2Sin alpha Cos alpha }{Sin alpha Cos alpha } = frac{2*(1-Sin2 alpha )}{2Sin alpha Cos alpha } = frac{2(1-Sin2 alpha )}{Sin2 alpha }$

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