$90\degree\pm\alpha$

$270\degree\pm\alpha$

$180\degree\pm\alpha$

 $\frac{1}{2}$  

 $\frac{\sqrt{2}}{2}$  

 $\frac{\sqrt{3}}{2}$  

0

 $\sin\alpha$  

 $\cos\alpha$  

 $-\sin\alpha$  

 $-\cos\alpha$  

 $tg\alpha$  

 $\operatorname{ctg}\alpha$  

 $-tg\alpha$  

 $-\operatorname{ctg}\alpha$  

1

0

 $\frac{1}{2}$  

 $-\frac{1}{2}$  

 $\sin^2\alpha$  

 $\cos^2\alpha$  

 $tg^2\alpha$  

 $\operatorname{ctg}^2\alpha$  

 $\frac{\sqrt{2}}{2}$  

 $-\frac{\sqrt{2}}{2}$  

 $\frac{1}{2}$  

 $-\frac{1}{2}$  

 $\sin\left(90\degree-\alpha\right)$  

 $\sin\left(180\degree-\alpha\right)$  

 $\sin\left(270\degree-\alpha\right)$  

 $\cos\left(360\degree+\alpha\right)$  

 $\cos\left(360\degree-\alpha\right)$  

 $\pi\pm\alpha$  

 $\frac{\pi}{2}\pm\alpha$  

 $2\pi\pm\alpha$  

 $\frac{3\pi}{2}\pm\alpha$