Trig3

 $\sin\ \left(-30\degree\right)+\tan\left(-45\degree\right)=$  

 $\cos\ \left(-60\right)+\sin\left(-90\right)=$  

 $\sin^2x+\cos^2x=$  

 $Solve\ \sin x=\frac{1}{2}\ for\ 0\le x\le360\degree$  

 $Solve\sin x=\frac{\sqrt{3}}{2}\ ​for\ 0≤x≤360°$  

 $Solve\cos⁡x=-\frac{1}{2}\ for\ 0≤x≤360°$  

 $Solve\cos⁡x=-\frac{1}{\sqrt{2}}\ for\ 0≤x≤360°$  

 $Solve\sin⁡x=1\ for\ 0≤x≤360°$  

 $Solve\cos⁡x=-1\ for\ 0≤x≤360°$  

 $Solve\sin2⁡x=\frac{\sqrt{3}}{2}\ for\ 0≤x≤360°$