$\left[-2\pi+3\pi k;\ 2.5\pi+3\pi k\right]$  

 $\left(2\pi+3\pi k;\ 2.5\pi+3\pi k\right)$  

 $\left[2\pi+3\pi k;\ \frac{5}{3}\pi+3\pi k\right)$  

 $\left(-\frac{2\pi}{3}+\frac{2\pi n}{2};\frac{2\pi}{3}+\frac{2\pi n}{2};\right)$  

 $\left[\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{\pi}{24}+\frac{\pi k}{4}\right]$  

 $\left(\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{5\pi}{24}+\frac{\pi k}{4}\right)$  

 $\left(\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{\pi}{24}+\frac{\pi k}{4}\right)$  

 $\left(\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{\pi}{24}+\frac{\pi k}{4}\right]$  

 $\left(-\frac{\pi}{2}+3\pi k;3\pi+3\pi k\right)$  

 $\left(\frac{\pi}{2}+3\pi k;3\pi+3\pi k\right]$  

 $\left(\frac{\pi}{4}+3\pi k;\pi+3\pi k\right]$  

 $\left(\frac{\pi}{8}+3\pi k;2\pi+3\pi k\right)$  

 $\left[-\frac{\pi}{9}+\frac{\pi k}{9};\frac{2\pi}{9}+\frac{\pi k}{9}\right)$  

 $\left[\frac{\pi}{9}+\frac{\pi k}{9};\frac{2\pi}{9}+\frac{\pi k}{9}\right]$  

 $\left[\frac{\pi}{9}+\frac{\pi k}{9};\frac{2\pi}{9}+\frac{\pi k}{9}\right)$  

 $\left[-\frac{\pi}{9}+\frac{\pi k}{9};\frac{2\pi}{9}+\frac{\pi k}{9}\right]$  

 $\frac{\sin2x}{2}$  

 $\frac{\cos2x}{2}$  

 $\frac{tg2x}{2}$  

 $\frac{\operatorname{ctg}2x}{2}$  

 $-\sin2x$  

 $\sin2x$  

 $\cos2x$  

 $-\cos2x$  

 $-\sin2x$  

 $\sin2x$  

 $\cos2x$  

 $-\cos2x$  

150

300

120

180

 $\frac{3\pi}{4}$  

 $\frac{5\pi}{4}$  

 $\frac{7\pi}{4}$  

$2\sin^2x-1$

$2\cos^2x-1$

$\sin^2x-\cos^2x$

$\cos^2x-\sin^2x$

1

2

3

4

$\pm\arccos0.5+2\pi n$

$\pm\frac{\pi}{3}+2\pi n$

$\pm\arccos0.5+\pi n$

$\pm\frac{\pi}{3}+\pi n$