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On (A={1,2,3,4}), (R) is reflexive. If (R\subseteq S\subseteq A\times A), what conclusion about (S) is certain?

Answer and explanation

Correct answer: (S) is reflexive

Step 1: Since (R) is reflexive, all self-pairs are in (R). Step 2: Because (R\subseteq S), all those self-pairs are also in (S). Step 3: Therefore (S) is definitely reflexive.

Related tags

Super RelationReflexive GuaranteeSubset ConditionHardReflexive RelationRelations And FunctionsMathematicsClass 12 Mcq

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