Consider the following function 3 JO R 64 dx a Determine an appropriate trigonometric substitution Use x 8 sin 0 where 1 0 1 since the integrand contains the expression 82 x 2 Use x 8 tan 8 where x3 64 x IT 2 0x dx S 0 O Use x 8 sec 0 where 0 0 0 or 0 31 TT 2 TT 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 8 sin 0 8 cos 0 X since the integrand contains the expression 8 x de