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On all real numbers, (aRb) if and only if (a-b\ge 0). Why is this not an equivalence relation?

Answer and explanation

Correct answer: Because it is not symmetric

Step 1: (a-b\ge 0) means (a\ge b). Step 2: (2R1) is true, but (1R2) is false. Step 3: Since symmetry fails, it cannot be an equivalence relation.

Related tags

Greater Than Or EqualSymmetry FailureReal NumbersNot EquivalenceEquivalence RelationRelations And FunctionsMathematicsClass 12 Mcq

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