#### Question

If *A* = {2, 3, 4}, *B* = {1, 3, 7} and *R* = {(*x*, *y*) : *x* ∈ *A*, *y* ∈ *B* and *x* < *y*} is a relation from *A* to *B*, then write *R*^{−1}.

#### Solution

Since* R* = {(*x*, *y*) : *x *∈* A*, *y* ∈ *A* and *x* < *y*},*R* = {(2, 3), (2, 7), (3, 7), (4, 7)}

So, *R*^{-1} = {(3, 2), (7, 2), (7, 3), (7, 4)}

Is there an error in this question or solution?

Solution If a = {2, 3, 4}, B = {1, 3, 7} and R = {(X, Y) : X ∈ A, Y ∈ B and X < Y} is a Relation from a to B, Then Write R−1. Concept: Types of Relations.