In Figure 3, OA= a, OB= b and M is the mid-point of AB. The point P is on OA such that OP:PA = 3:2 The point X lies on OB produced. (a) Find, as simplified expressions in terms of a and b, (i) AB(ii) OM(iii) PM Given that P, M and X are collinear (b) find, in terms of b, OX (area OAM):area OAX)