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On a three-element set, how many relations are reflexive but not the universal relation?

Answer and explanation

Correct answer: (63)

Step 1: On a three-element set, the number of reflexive relations is (2^{9-3}=2^6=64). Step 2: This count includes the universal relation. Step 3: Excluding the universal relation gives (64-1=63).

Related tags

Reflexive RelationUniversal RelationCountingRelations And FunctionsMathematicsClass 12 Mcq

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