9. Evaluate F . dr, where F = (xy, 2). C consists of the parts C1, C2, C3 and C 2 22 C = CIUC2 UC3. C1 follows the lower half of the ellipse + 9 = 1 from (-3, 0) 16 to (3,0) (hence going counterclockwise). C2 is the line segment from (3, 0) to (1, 0). Finally, C3 follows the upper half of the circle of radius 1 centered at (1, 0) from (1, 0) to (0, 0). Show all your work