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While checking a symmetric relation, what should be checked first?

Answer and explanation

Correct answer: The reverse ordered pair of every ordered pair

The governing test for symmetry concerns ordered pairs and their reverses. For a relation R on A, take any pair (a,b) in R and check whether (b,a) is also in R. This check must be applied to every listed pair; finding even one pair whose reverse is absent proves that the relation is not symmetric. The number of elements in the set does not decide symmetry, because sets of the same size can support both symmetric and non-symmetric relations. The largest element is irrelevant, and a relation’s name cannot replace verification from its pairs. Hence option A states the correct first step and the exact operational test.

Related tags

Symmetric RelationOrdered PairsChecking MethodRelationsRelations And FunctionsMathematicsClass 12 Mcq

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