imply the integral that gives the arc length of the following curve on the given interval b If necessary use technology to evaluate or approximate the integral y cos 3x for 0 x OA 1 3 sin 23x dx B T O C 0 T 0 1 9 sin 3x dx R S 0 3 cos 3x dx OD 1 9 cos 3x dx a j 0 b The arc length of the curve is approximately 1 e 3x 9 c