Calculus 2:

Problem 14. (6 points) 1. For the integral the appropriate substitution is ..... and the resulting trigonometric integral is ..... c'val - 9 OA. = = 3 sec(0) [ sec(@)do OB. T = 3tan(0) 9/- O C. None of these OD. x = 3 sin(0) Stan(0)do OE. x = 3 sec(0) [ cos(0) do