(a) Find the Maclaurin series for the function f(x)= 1 + x 1 integrating each term, show that arctan.x = (1)"+1, -. (c) Show that this series xn-1 2n-1 1 1 converges for -1 x1 and hence show that 1--+---+...= 3 5 7 1 1 T 4 (b) Hence by