1. The problem statement, all variables and given/known data 2. Relevant equations Theta = arctan (y/x) 3. The attempt at a solution Hopefully this is the right section to post in, but I am a bit confused with complex numbers. I am working on the problems above and I just wanted to make sure I am doing each part correctly. I think A and B are correct, but I'm not 100% sure about my theta. That usually trips me up. Are my theta's correct? Did I add pi correctly where it needs it? For C and D do I need to include the angle? In my answers? it does not say what form to do C and D in so I was a bit confused about those. Is there a standard form to use when it's not given in the problem? Also, is there some way to simplify D? OR do I just leave it how I have it?