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On (A={1,2,3,4}), (R={(a,b):a+b\text{ is odd}}). What is the correct statement about (R)?

Answer and explanation

Correct answer: (R) is symmetric

Step 1: Changing the order in addition does not change the sum. Step 2: If (a+b) is odd, then (b+a) is also odd. Step 3: Hence every pair has its reverse, so (R) is symmetric.

Related tags

Odd Sum RelationParitySymmetric RelationRelations And FunctionsMathematicsClass 12 Mcq

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