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On real numbers, (a*b=a^2+b^2) is defined. Choose the correct conclusion about this operation.

Answer and explanation

Correct answer: Commutative but not associative

Step 1: (a*b=a^2+b^2=b^2+a^2=b*a), so it is commutative. Step 2: ((1*1)*2=2*2=8), while (1*(1*2)=1*5=26), so it is not associative. Step 3: Test commutativity and associativity with separate checks.

Related tags

Binary OperationsCommutativityAssociativityReal NumbersRelations And FunctionsMathematicsClass 12 Mcq

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