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How many minimum pairs must be added to make (R={(1,4),(4,1),(2,5)}) symmetric?

Answer and explanation

Correct answer: 1

Step 1: Separate the pairs whose reverses already exist. Step 2: ((1,4)) and ((4,1)) are complete, and only ((5,2)) is needed for ((2,5)). Step 3: The number of missing reverse pairs gives the minimum number to add.

Related tags

Symmetric RelationMinimum PairsMissing ReverseQuizRelations And FunctionsMathematicsClass 12 Mcq

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