same as that obtained in part (u). 9-14 Show that the integral is independent of the path, and use Theorem 15.3.1 to find its value. .(4.0) 3ydx + 3x dy ( 1 .2 ) (1, 7/ 2) 10. e sinydx + e cosy dy (0.0) (3,2) 11. 2 xe " dx + x e" dy (0.0) (0,1) 12. (3x - y + 1) dx - (x + 4y +2) dy ( - 1,2 ) (- 1,0) 13. 2xy' dx + 3y x dy ( 2, - 2)