1. The problem statement, all variables and given/known data Evaluate the double integral sin(x-y)*e(x-y)^2-0y) 2--- dA where D is a disk of radius 2 whose center is (1; 1) 2. Relevant equations 3. The attempt at a solution gee this problem stumped me. Ive been working on it for over 3hrs. Ive tried changing into polar form and integrating that. That just takes me to an even messier integral. My professor says their is a trick, but I can't find it. I have a hunch somehow the integral will come down to finding the area of the disk, but I'm not sure how to get to that point. Just to prove Ive tried something: sin(r(cos(theta)-sin(theta)))*e^(r^2(cos(theta)-sin(theta)))*r that is what my integrand would be if I change it to polar Please help me. Im so frustrated.