This question has multiple parts, read carefully. Consider the given Maclaurin Series: COS X = T. fun x 2n n=0 (2n)! a) Use the Maclaurin Series given above to find the power series for the following function. You may skip defining the interval of convergence here. f(x) = x3cos(x2) b) Use your result from part (a) to approximate the definite integral below with |error