2(a) The relation R on a set A = {1, 2, 3} such that Determine if R is a partial order relation on A 6 marks] (b) Let R be the relation on the set A -fa,a2,a,ajJ such that the matrix of R is 1 O01 0 1 1 0 o 00 100 1 MR Determine whether R is: (i) reflexive? [3 marks] [3 marks] (c) Let set A = {p, q,r) and R is a relation on set A, where () Determine if R is an equivalence relation on A. (i) Draw a digraph of the relation. [6 marks] [2 marks]