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On integers, (aRb) iff (a-b) is divisible by (6). What is the equivalence class of (7)?

Answer and explanation

Correct answer: ({6k+1:k\in\mathbb{Z}})

Step 1: (7) leaves remainder (1) when divided by (6). Step 2: Its class contains all integers of the form (6k+1). Step 3: (6k+7) represents the same set, but (6k+1) is the standard simpler form.

Related tags

RelationsModuloEquivalence-ClassIntegersIntroduction To RelationsRelations And FunctionsMathematicsClass 12 Mcq

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