$6 Consider the function f('.c) : W. a: (a) Find the power series representation centered at a: = 0. Complete the given equation by entering an expression involving n and an. Answer: x): i 11:0 (b) Enter the first 5 nonzero terms of the power series. (These are expressions involving (1:, compatible with the indices 11. : O, 1, 2, 3, 4 in part (an Answer: f(a:) : + + + + (c) Find the interval of convergence for the power series