Integration - Substitution: Problem 1 (1 point) Evaluate the integral by making the given substitution. sec(4x) tan(4x) da, u = 4x Answer:Integration - Substitution: Problem 4 (1 point) Evaluate the indefinite integral. x? (x3 + 2) 1/2 dx Integral = - [NOTE: Remember to enter all necessary *, (, and ) ! Enter arctan(x) for tan , sin(x) for sinc . ]Integration - Substitution: Problem 6 (1 point) Find the following integral. Note that you can check your answer by differentiation. In (2) dzIntegration - Substitution: Problem 9 (1 point) Evaluate the indefinite integral. T2 + 3 [NOTE: Remember to enter all necessary *, (, and ) ! ]Integration - Substitution: Problem 11 (1 point) Evaluate the indefinite integral. 5 1 r'tl de Integral = [NOTE: Remember to enter all necessary *, (, and ) ! Enter arctan(x) for tana, sin(x) for sinc . ]