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On real numbers, (aRb) iff (|a-b|=0). What type of relation is it?

Answer and explanation

Correct answer: identity relation and equivalence relation

Step 1: (|a-b|=0) holds exactly when (a=b). Step 2: Thus the relation contains only pairs of the form ((a,a)). Step 3: It is the identity relation and is reflexive, symmetric and transitive.

Related tags

RelationsIdentity-RelationAbsolute-ValueEquivalenceIntroduction To RelationsRelations And FunctionsMathematicsClass 12 Mcq

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