I uploaded the problem to tinypic so its easier to see http://i30.tinypic.com/fkr911.png
Here's what I got:
A) -3 sqrt2
B) -1 (is there a good way to "show my work" for how i got -1 without filling the entire page?)
Not very good at trig, please let me know if i messed any of these up, thank you!