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On (A={1,2}), (R={(1,1),(2,2),(1,2)}). What is correct about the complement relation (R^c)?

Answer and explanation

Correct answer: (R^c) is not reflexive

Step 1: (A\times A) has ((1,1),(1,2),(2,1),(2,2)). Step 2: (R^c) contains only ((2,1)), because the self-pairs are already in (R). Step 3: Hence the complement relation is not reflexive.

Related tags

Complement RelationNot ReflexiveCartesian ProductReflexive RelationRelations And FunctionsMathematicsClass 12 Mcq

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