b) (8) Figure I shows a square. Point M is the midpoint of All and the point N is the midpoint of MC. Point D is such that AB - AB Given OA a and OC-C determine the simplified expression, in terms of a and c for each of the following rectors. BD, MC, ON and ND 0 D с (5 marks) Fig. I Determine the first five terms, in ascending powers of z, in the binomial expansion of (1-2r)", hence evaluate the value of ()". (6 marks)
