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On the set of integers, relation (R) is defined by (aRb) if (a-b) is divisible by (5). What type of relation is it?

Answer and explanation

Correct answer: equivalence relation

Step 1: (a-a=0) is divisible by (5), so the relation is reflexive. Step 2: If (a-b) is divisible by (5), then (b-a) is also divisible by (5), and adding two such differences gives transitivity. Step 3: Remainder-based relations often form equivalence relations.

Related tags

RelationsEquivalenceIntegersDivisibilityIntroduction To RelationsRelations And FunctionsMathematicsClass 12 Mcq

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