> I need a little help with trig?

I need a little help with trig?

Posted at: 2014-06-09 
I dont exactly know how to answer some of my questions. If you could help me solve them it be much appreciated. I dont need any explanations but if you could give me the answer and what you used to solve so i know im going in the right direction. 1.) (4-4i)^3 write in standard notation 2.) (-1+i)/(-1-i) write in standard notation 3.) find the fourth roots of 256