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On (A={1,2,3,4}), (R={(1,2),(2,4),(1,4),(4,2)}). Which pair is necessarily required for transitivity?

Answer and explanation

Correct answer: ((2,2))

Step 1: Combining ((2,4)) and ((4,2)) requires ((2,2)). Step 2: This pair is not in the relation, so transitivity is not complete. Step 3: When reverse pairs appear, check the self-pairs forced by them.

Related tags

Reverse PairsMissing Self PairTransitive ClosureTransitive RelationRelations And FunctionsMathematicsClass 12 Mcq

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