4. For this problem, F(x, y, 2) = (x2, 2, 3x2 + 2yz), and: Z surface S. surface: z=2-ry S is the piece of the surface z = 2-ry that lies above curve C: the square [0, 1] x [0, 1]; 2 C is the closed curve which bounds S, oriented counter-clockwise when viewed from above. - curve C [6] a) Find curl(F) . [6] b) SET UP the double integral (limits and all) you would evaluate if you were asked: Use Stokes' Theorem to evaluate o F . dr