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Which relation on (\mathbb{R}) is symmetric?

Answer and explanation

Correct answer: (R={(a,b):a-b=0})

Step 1: (a-b=0) means (a=b). Step 2: If (a=b), then (b=a), so the reverse pair also belongs. Step 3: Equality-based relations are symmetric, while conditions like (a-b=1) change when reversed.

Related tags

Real NumbersSymmetric RelationEqualityRelations And FunctionsMathematicsClass 12 Mcq

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