Ononot — If \text{tr}(A) = 5 and \text{tr}(A^2) = 13 for a 2 \times 2

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Eigenvalues & Eigenvectorshard

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If $\text{tr}(A) = 5$ and $\text{tr}(A^2) = 13$ for a $2 \times 2$ matrix, what is the determinant of $A$ ?