At least one of the answers above is NOT correct a) Consider the function arctan(z?) Write a partial sum for the power series which represents this function consisting of the first 4 the senes were In, 3"? you would write 1 + 3x2 indicate the radius of convergence Partial Sum Radius of Convergence 1 b) Use part a) to write the partial sum for the power series which represents f arctan( r?)da Write the first 4 nonzero terms. Also indicate the radius of convergence. 15 Partial Sum 21 105 Radius of Convergence 1 () Use part b) to approximate the integral fo arctan(x?)dr. Note: You can cam partial credit on this