Задание

Решите уравнения.

\(\) \(\ctg(x)=0\)

\(\ctg(x)=-\frac{\sqrt3}{3}\)

\(\cos(x)=\frac{1}{2}\)

\(-\frac{\pi}{4}+\pi{n}, n\in{Z}\)

\(\frac{2\pi}{3}+\pi{n}, n\in{Z}\)

\(\pm\frac{\pi}{3}+2\pi{k}, k\in{Z}\)

\(\frac{\pi}{2}+\pi{n}, n\in{Z}\)

\(\frac{\pi}{3}+\pi{n}, n\in{Z}\)

\(\pi+2\pi{k}, k\in{Z}\)