Thanks both of you, but i am still having issues. I'm doing a practice provincial exam for Pmath 12 and I haven't done this stuff in half a year ( also the unit I struggled the most with).
Here are the possible answer's:
A- (pi)/6 and 7(pi)/6
B-5(pi)/6 and 11(pi/6
C- (pi)/6 and 7(pi)/6 and (pi)/2 and 3(pi)/2
D-5(pi)/6 and 11(pi/6 and (pi)/2 and 3(pi)/2
Thanks for any further help