Hello!

Can someone please tell me how to solve this double integral?

The following hint is given: Sketch the domain of integration.

I don't know the antiderivative of . I tried to guess a couple of antiderivatives, but none of their derivatives were equal to .

Is there something else I should do first (and how)?

Thanks!

I tried switching dydx to dxdy, which results inUpdate:

But this seems even worse, because the variable boundary is now on the outer integral.

Please help! I still can't solve this one.