Question 7 Let R1 and R2 be two equivalence relations on a set. Consider the following assertions: (i) R1 ∪ R2 is an equivalence relation (ii) […]

Question 8 The number of functions from an m element set to an n element set is A m + n B mn C nm D m*n […]

Question 39 In a room containing 28 people, there are 18 people who speak English, 15 people who speak Hindi and 22 people who speak Kannada. […]

Question 38 The binary relation R = {(1,1), (2,1), (2,2), (2,3), (2,4), (3,1), (3,2), (3,3), (3,4) on the set A = {1,2,3,4} is A reflexive, symmetric and transitive […]