I need some help with double integrals. I have the following homework problem:

Let D be the region of the plane bounded by the two hyperbolas xy = 1 and xy = 4, and by the two cubics y = x3 and y = 5x3. Evaluate over D ∫∫ [(x2 + y2)/x2]dx dy ( Read more... )

I have not posted in a while, but I have some more questions ( Read more... )