9. (a) (15 points) Apply Green's theorem to evaluate jig F -nds, where F 2 (3+3!) i C (1:2 +3?) j, n is the outwardpointing normal vector on C, and C is the boundary of a triangle with vertices [l,0},(0,1), (1,0) oriented in the counterclockwise direction. (b) (15 points) Evaluate directly the ne integral f F - nds in part (a). C