This is pretty swish! Here's what i've done:Evaluate .
My query is: Is there a shorter way to do this?
hmm, well this is interesting.
I only worked out that integral in front of my computer just now. I can't see a mistake in what i've done (quickly checking what I have now!).
I'll try solving in tomorrow when i'm more refreshed, It's too late to do maths!
If there's someone who hasn't posted yet reading this, work out an answer! A third opinion would be very helpful!!