This makes no sense to me. I definitely think I'm doing it right.

Convert 3sqrt(3) - 9i into polar form.

Every time I do it, I get 6sqrt(3)(1/2 - .....) The second part doesn't work.

What am I doing wrong?

EDIT: Bonus Question:

Prove there is no field F such that R is not a subset of F which is not a subset of C. (R is the real numbers and C is the complex numbers, sorry I don't know how to do the math writing on here well yet.)