Question

If R be a relation < from A = {1, 2, 3, 4} to B = {1, 3, 5}, that is, (a,b) ∈ R ⇔ a < b then RoR⁻¹ is

(A)  {(1, 3), (1, 5), (2, 3), (2, 5), (3, 5), (4, 5)} 

(B)  {(3, 1) (5, 1), (3, 2), (5, 2), (5, 3), (5, 4)} 

(C)  {(3, 3), (3, 5), (5, 3), (5, 5)} 

(D)  {(3, 3) (3, 4), (4, 5)}

Answer 1

Correct option  (C) {(3, 3), (3, 5), (5, 3), (5, 5)}

Explanation :

We have