Homework Statement
Compute the surface integral for F = [3x^2, y^22, 0] and S being a portion of the plane r(u,v)=[u,v,2u+3v], 0≤u≤2, −1≤v≤1.The Attempt at a Solution
I managed to get the correct answer, because with some luck I defined the normal in the correct direction. I am just confused...