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On natural numbers, (a*b=a+b) is defined. Is this a binary operation?

Answer and explanation

Correct answer: Yes because the sum is natural

Step 1: A binary operation needs closure. Step 2: The sum of two natural numbers is again a natural number. Step 3: Having inverses is not necessary for being a binary operation.

Related tags

Binary OperationsClosureNatural NumbersRelations And FunctionsMathematicsClass 12 Mcq

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