Hello all,

I am new to this forum as my post counter will show, and I have a toughy right out of the box. Can someone please point me in the right direction?

I am a little fuzzy on this as I have not been in school for 20 years.

Goes to show how much we use this junk huh?

DeMoivre’s Theorem states, “Ifz=r(cosu+isinu), thenzn=rn(cosnu+isinnu).”

I have to verify for n=2. Where the heck am I supposed to start?

I do not remember DeMoivre's Theorem.

Any help would be greatly appreciated.