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On (A={1,2,3}), what must be done to make (R={(1,2),(2,1),(1,3)}) symmetric?

Answer and explanation

Correct answer: Add ((3,1))

Step 1: ((1,2)) and ((2,1)) already form a reverse pair. Step 2: ((1,3)) is present, but its reverse ((3,1)) is missing. Step 3: To make a relation symmetric, add only the missing reverse pairs.

Related tags

Symmetric RelationMake SymmetricMissing PairRelations And FunctionsMathematicsClass 12 Mcq

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