hey there..

I have an assignment to submit early morning tomorrow..and I really want 2 get an idea about this problem..

it's on complex no.s

Evaluate:

(cosα +isinα)^4 / (sinα + icosα)^5

for the icos α part I want to ask.. what's the possible way to solve it?

Like shall I subtract the angle α from 90 degrees? ('pi over 2') or...?

I'd really appretiate ur help... just so I can start the question atleast..