Формулы приведения
Упростите. Очень прошу. Даю 20 баллов
[tex] \frac{tg( \pi - \alpha )}{cos( \pi + \alpha)} * \frac{sin( \frac{3}{2} \pi + \alpha)}{tg (\frac{3}{2} \pi + \alpha )} [/tex]
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