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For the relation on natural numbers where numbers have the same last digit, what is the equivalence class of (23)?

Answer and explanation

Correct answer: All natural numbers ending in (3)

Step 1: The last digit of (23) is (3). Step 2: So numbers like (3,13,23,33) belong to the same class. Step 3: The class is built using the defining property of the relation.

Related tags

Equivalence ClassLast DigitNatural NumbersEquivalence RelationRelations And FunctionsMathematicsClass 12 Mcq

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