Problem 3. A. (5 points) (a) Try using Wolfram Alpha to solve the integral, 1—x4 J ,c4(1+x2+x4)dx, Does it give you an elementary antiderivative? How do you know? (b) Use a substitution of the form u = xk + X-k (for some positive integer k) to solve the integral j..ilFx4(1+x2+x4) (HINT: After your substitution, you […]