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In the relation (R={(1,2),(2,1),(1,3),(3,1),(2,2)}), which pair is equal to its own reverse?

Answer and explanation

Correct answer: ((2,2))

Step 1: A pair is equal to its own reverse when both entries are the same. Step 2: Among the given pairs, reversing ((2,2)) gives ((2,2)) again. Step 3: Pairs like ((a,a)) are always safe in symmetry checks.

Related tags

Diagonal PairReverse PairSymmetric RelationClass 12Relations And FunctionsMathematicsClass 12 Mcq

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