Ononot — If A is a 3 \times 3 matrix with \text{tr}(A) = 6 and \det(A

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Eigenvalues & Eigenvectorshard

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If $A$ is a $3 \times 3$ matrix with $\text{tr}(A) = 6$ and $\det(A) = 11$ , and its eigenvalues are $1, 2, 3$ , what is $\text{tr}(A^2)$ ?