You know me well sir. I already was there deriving them, now most of them I can see what to do. But one is alluding me

. Now I haven't given it much time but

Ok my first move was to do the obvious double integral

So we have

Now rewriting this as (this is so people who aren't super accustomed to double integrals can see what I am doing)

Where

From here it is obvious that this region is a rectangle, so Fubini's Theorem applies

So

Now this inner integral is bothering me, I cannot seem to get it in the eight minutes I have tried

parts-no deal

Letting

-no go

Any suggestions?

I also tried some crazy thing where I let

And found that the integral I want is a constant difference from