October 2018 1 46 Report

Oblicz \frac{1}{2}tg\alpha+sin\alpha jeśli:

A)sin(\alpha + \pi) = -\frac{\sqrt{3}}{2} i 0<alpha<pi/2 czyli III i IV ćwiartka.

B)tg(\alpha-\frac{\pi}{2})=2\ i\ \frac{\pi}{2}<\alpha<\pi


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