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On (\mathbb{R}), (a*b=|a-b|). Which statement is correct?

Answer and explanation

Correct answer: It is commutative but not associative

Step 1: (|a-b|=|b-a|), so the operation is commutative. Step 2: ((1*3)*6=2*6=4), while (1*(3*6)=1*3=2), so it is not associative. Step 3: Small counterexamples work well for absolute value operations.

Related tags

Binary OperationsAbsolute ValueCommutativeNot AssociativeRelations And FunctionsMathematicsClass 12 Mcq

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