The function fis defined by f (x) = In 1-x a) Write down the value of the constant term in the Maclaurin series for f (x). (1) (b) Find the first three derivatives of f(x) and hence show that the Maclaurin series for f (x) up to and including the x' term is ry * + 2 (6) c) Use this series to find an approximate value for In 2. (3