Let R = {(1, 3), (2, 2), (3, 2)} and S = {(2, 1), (3, 2), (2, 3)} be two relations on set A = {1, 2,

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1.Relation and Function

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Let $R = \{(1, 3), (2, 2), (3, 2)\}$ and $S = \{(2, 1), (3, 2), (2, 3)\}$ be two relations on set $A = \{1, 2, 3\}$. Then $RoS =$

A

$\{(1, 3), (2, 2), (3, 2), (2, 1), (2, 3)\}$

B

$\{(3, 2), (1, 3)\}$

C

$\{(2, 3), (3, 2), (2, 2)\}$

D

$\{(2, 3), (3, 2)\}$

Solution

(c) Here $R = \{ (1,\,3),\,(2,\,2);\,(3,\,2)\} $,

$S = \{ (2,\,1);\,(3,\,2);\,(2,\,3)\} $

Then $RoS = \{ (2,\,3);\,(3,\,2);\,(2,2)\} $.

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