[Resolved] Help With Trig Identity

Hey guys,

Been revising for a test tomorrow the past few days and I've come across a question that's stumped me. (I've spent a few hours trying to do it :x)

It's for Trig Identities, and the question is:

Prove:  (1 - sinA)/(1-secA) - (1 + sinA)/(1 + secA) = 2cotA[cosA - cosecA]

And yep, I've checked with a calculator that both sides are in fact equal (they are.)

Any help would be mega-appreciated.

Cheers


Edit: One of my mate's helped me out with this, got the answer now, no probs.