In Problems 1-3, evaluate the given double integral by changing it to an iterated integral.
1.

S is the region between y = x2 and y = (x.
2. If

S is the region between y = x and y = 3x - x2.
3. If

S is the triangular region with vertices at (0, 0), (2, 2), and (0, 2).

x22y) dA: (x2-xy) dA: d A;