4) [5] Let R and S be relations on A = {1,2,3,4,5,6} such that R = {(1,3), (1,4), (2,2), (4,1),(5,2), (6,3)} and S = {(2,2), (2,4), (3,1),(4,1), (3,5)}. a) Find RS. b) Find SR.

Fig: 1