You'll be needing to solve some trig equations at the very end of some Calculus problems... So, let's review!
Solve 
Remember that this is asking for the where the  
sine is  That's long and negative! 
ALWAYS draw a quick unit circle!
Usually, you'll just need to find the solutions on ... which is one lap around the unit circle.

If you want ALL the solutions, remember that you add to get all the laps around
or 
YOUR TURN:
Solve  on 
Solve  on 
*hint:
 find this! 