b) Functions, f, g & h are defined on the set X = {1, 2, 3} as f = {(1, 3), (2, 1), (3, 2)} g = {(1, 2), (2.3), (3, 1)} h = {(1, 2), (2, 1), (3, 3)} i) Find fog and gofs Are they equals? ii) Find fogoh and fohog.