1. The problem statement, all variables and given/known data Find the area of the surface with parametric equations x=uv, y=u+v, z=u-v. u^2 + v^2 <= 1 2. Relevant equations A(S)= double integral over the domain D of the norm of the cross product (r_u X r_v) DA 3. The attempt at a solution I started off with finding the norm of the cross product and got sqrt [4+2(v^2) + 2(u^2)]. I found it almost impossible to solve that integral. So I'm trying to use polar coordinates, but I don't know how to set the equations in terms of theta and radius.