Question 16 of 18 Use one of the reduction formulas shown to the right (which are valid for a #0) to evaluate the integral below. Sx 4x dx This test: 18 point(s) possible This question: 1 point(s) possible Se Sx Sex- Sx 4x d dx = Submit test xneax n dx = - xn- - 1 eax dx a a xn sin ax n n-1 cos ax dx = sin ax dx a a Sx xn cos ax xn sin ax dx = n + cos ax dx a S In "x dx = x In "x-n n In n-1 x dx