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If (R) is reflexive on (A), which statement about (R\cup R^{-1}) is always true?

Answer and explanation

Correct answer: It is both reflexive and symmetric

Step 1: (R) contains all self-pairs, so they remain in the union. Step 2: In (R\cup R^{-1}), every pair appears with its reverse. Step 3: Therefore the relation is both reflexive and symmetric.

Related tags

Union InverseReflexive SymmetricRelation PropertyClass 12Reflexive RelationRelations And FunctionsMathematicsClass 12 Mcq

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