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On (A={1,2,3,4}), (R={(1,2),(2,3),(3,4),(1,3),(2,4)}). Which pair is necessarily needed to make (R) transitive?

Answer and explanation

Correct answer: ((1,4))

Step 1: ((1,3)) and ((3,4)) require ((1,4)). Step 2: ((1,2)) and ((2,4)) also require ((1,4)), and it is missing. Step 3: If the same missing pair is forced by multiple chains, it is definitely needed.

Related tags

Missing PairTransitive ClosureOrdered PairsTransitive RelationRelations And FunctionsMathematicsClass 12 Mcq

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