A4.1. (i) Prove by induction that dn (-1)2-1(n - 1)! dan log(1 + x) = ( 1 +x)n (-1

A4.1. (i) Prove by induction that log (1 = d:rn (ii) Hence obtain the Maclaurin expansion of log(l + x) . (iii) Deduce the Maclaurin series of log(l x). [5] marks