Consider the following function 3 dx a Determine an appropriate trigonometric substitution O Use x 8 sin 0 where O Use x 8 tan 0 where 1 IT 2 IT 2 since the integrand contains the expression 8 2 8 TT 2 since the integrand contains the expression 82 x O Use x 8 sec 0 where 0 0 or 0 3 2 since the integrand contains the expression 8 x 2 b Apply the substitution to transform the integral into a trigonometric integral Do not evaluate the integral x3 J dx 64 x de