Consider the following function x6 dx 1 x a Determine an appropriate trigonometric substitution Use x Use x sin 8 where tan 8 where T T 0 since the integrand contains the expression 1 x 2 2 dx T T 0 since the integrand contains the expression 1 x 2 2 Use x sec 0 where 0 0 or 0 since the integrand contains the expression 1 x V 2 3 2 b Apply the substitution to transform the integral into a trigonometric integral Do not evaluate the integral de