Q. 104.5( 4 Votes )

Let A be the set

Answer :

A = {1, 2, 3, 4, 5}


Since, x ≤ y


R = {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (2, 2), (2, 3) ,(2, 4), (2, 5), (3, 3), (3, 4), (3, 5), (4, 4), (4, 5), (5, 5) }


The domain of R is the set of first co-ordinates of R


Dom(R) = {1, 2, 3, 4, 5}


The range of R is the set of second co-ordinates of R


Range(R) = {1, 2, 3, 4, 5}


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