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For (R={(1,2)}) on (A={1,2,3}), which minimum pair must be added to make it symmetric?

Answer and explanation

Correct answer: ((2,1))

Step 1: Symmetry requires ((b,a)) whenever ((a,b)) is present. Step 2: Since ((1,2)) is present, ((2,1)) must be added. Step 3: Diagonal pairs are their own reverses, but the missing reverse pair is the key issue here.

Related tags

RelationsSymmetric-ClosureOrdered-PairsClass12Introduction To RelationsRelations And FunctionsMathematicsClass 12 Mcq

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