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Why is (R={(1,1),(2,2),(3,3),(1,2),(2,1)}) symmetric on (A={1,2,3})?

Answer and explanation

Correct answer: Because both ((1,2)) and ((2,1)) are present

Step 1: Diagonal pairs reverse to themselves. Step 2: The non-diagonal pair ((1,2)) has its reverse ((2,1)) present. Step 3: In symmetry check the reverse of every non-diagonal pair.

Related tags

RelationsSymmetric-RelationProperty-CheckIntroduction To RelationsRelations And FunctionsMathematicsClass 12 Mcq

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