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On (A={1,2,3}), (R={(1,2),(2,1),(2,3),(3,2),(1,1)}). Is (R) symmetric or not?

Answer and explanation

Correct answer: Yes, all required reverse pairs are present

Step 1: The reverse of ((1,2)) is ((2,1)), and both are present. Step 2: The reverse of ((2,3)) is ((3,2)), and ((1,1)) is its own reverse. Step 3: Symmetry does not require all possible pairs, only reverse pairs of the chosen pairs.

Related tags

Symmetric RelationOrdered PairsHard McqRelations And FunctionsMathematicsClass 12 Mcq

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