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If (R={(1,2),(2,1),(2,4),(4,2),(1,4)}), which pair must be added in the symmetric extension?

Answer and explanation

Correct answer: ((4,1))

Step 1: The pair ((1,2)) and ((2,1)) is complete. Step 2: The pair ((2,4)) and ((4,2)) is also complete, but the reverse ((4,1)) of ((1,4)) is missing. Step 3: In a symmetric extension, every missing reverse pair is added.

Related tags

Symmetric ExtensionMissing PairOrdered PairsSymmetric RelationRelations And FunctionsMathematicsClass 12 Mcq

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