Let D be the image of R = [2,4] [1,4] under the map G(u, v) = (a) Compute Jac(G). (Use symbolic notation and fractions where needed.) Jac(G)= (b) Sketch the domain D. Choose the correct graph. (c) Use the Change of Variables Formula to compute the area of D. (Use symbolic notation and fractions where needed.) area(D) = Ex Use the Change of Variables Formula to compute f(x, y) dx dy, where f(x, y) = x + y. (Use symbolic notation and fractions where needed.) (x + y) dx dy = D