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On (A={1,2,3}), (R={(1,1),(2,2),(3,3),(1,2),(1,3)}). Is this relation antisymmetric?

Answer and explanation

Correct answer: yes, because no reverse off-diagonal pair occurs together

Step 1: Antisymmetry only forbids two-way pairs between distinct elements. Step 2: Here ((1,2)) is present but ((2,1)) is not, and ((1,3)) is present but ((3,1)) is not. Step 3: Diagonal pairs do not violate antisymmetry.

Related tags

RelationsAntisymmetricOrdered-PairsClass12Introduction To RelationsRelations And FunctionsMathematicsClass 12 Mcq

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