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On (A={1,2,3,4}), (R=A\times A). How many equivalence classes does it have?

Answer and explanation

Correct answer: (1)

Step 1: In (A\times A), every element is related to every other element. Step 2: Hence all elements fall into one equivalence class. Step 3: This is the universal relation, so the number of equivalence classes is (1).

Related tags

Universal RelationEquivalence ClassesCartesian ProductClass 12Equivalence RelationRelations And FunctionsMathematicsClass 12 Mcq

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