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On the set (A={1,2}), (a*b=b) is defined. What is the value of (1*2)?

Answer and explanation

Correct answer: (2)

Step 1: According to the given rule, the result is the second element. Step 2: In (1*2), the second element is (2). Step 3: The operation rule may be different from usual addition or multiplication.

Related tags

Operation EvaluationFinite SetBinary OperationBinary OperationsRelations And FunctionsMathematicsClass 12 Mcq

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