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

Answer and explanation

Correct answer: Because ((2,3)) is missing

Step 1: The pairs ((2,1)) and ((1,3)) are in the relation. Step 2: Transitivity requires ((2,3)), but it is missing. Step 3: While checking equivalence, use two connected pairs to identify the required third pair.

Related tags

Transitivity FailureFinite RelationEquivalence TestEquivalence RelationRelations And FunctionsMathematicsClass 12 Mcq

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