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Why is (R={(1,1),(2,2),(3,3),(1,2)}) not an equivalence relation on (A={1,2,3})?

Answer and explanation

Correct answer: Because it is not symmetric

Step 1: Symmetry is necessary for an equivalence relation. Step 2: Here ((1,2)) is present but ((2,1)) is missing, so symmetry fails. Step 3: In equivalence relation questions check reverse pairs for non-diagonal pairs.

Related tags

RelationsEquivalence-RelationSymmetry-FailIntroduction To RelationsRelations And FunctionsMathematicsClass 12 Mcq

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