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On the set of (2\times 2) real matrices, (A RB) if and only if (\det(A)=\det(B)). Why is this relation an equivalence relation?

Answer and explanation

Correct answer: Because equality of determinant is reflexive, symmetric, and transitive

Step 1: The determinant of any matrix is equal to itself. Step 2: Equality of determinants works in both directions. Step 3: If the first and second determinants are equal, and the second and third are equal, then the first and third are equal too.

Related tags

MatricesDeterminantEquivalence RelationClass 12Relations And FunctionsMathematicsClass 12 Mcq

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