Решите уравнение:
\(\tg\frac{x}{2}=-1\)
\(-\frac{\pi}{2}+2\pi n,n\in Z\)
\(-\frac{\pi}{4}+\pi n,n\in Z\)
\(-\frac{\pi}{8}+\frac{\pi n}{2}, n\in Z\)
\(\frac{\pi}{2}+2\pi n,n\in Z\)