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If a relation satisfies (R^{-1}\subseteq R), what is the correct conclusion about the symmetry of (R)?

Answer and explanation

Correct answer: (R) will be symmetric

Step 1: (R^{-1}\subseteq R) means all pairs of the inverse relation are contained in (R). Step 2: If ((a,b)\in R), then ((b,a)\in R^{-1}), so by inclusion ((b,a)\in R). Step 3: Inclusion of inverse relations is a quick way to prove symmetry.

Related tags

Inverse InclusionSymmetric RelationProofClass 12Relations And FunctionsMathematicsClass 12 Mcq

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