$$\frac{\pi}{2}$$  

$$\frac{\pi}{3}$$  

$$\frac{\pi}{6}$$  

$$0$$  

$$\frac{\pi}{2}$$  

$$\frac{\pi}{4}$$  

$$\frac{\pi}{6}$$  

$$\frac{\pi}{3}$$  

[-1;1]

[0; $$\pi$$  ]

[- $$\frac{\pi}{2}$$  ;+ $$\frac{\pi}{2}$$  ]

(- $$\infty;+\infty$$  )

$$\frac{5\pi}{6}$$  

- $$\frac{\pi}{6}$$  

$$\frac{2\pi}{3}$$  

- $$\frac{\pi}{3}$$