Ononot — The characteristic polynomial of A = \begin{pmatrix}5 & 2 \\

Eigenvalues & Eigenvectorshard

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The characteristic polynomial of $A = \begin{pmatrix}5 & 2 \\ -4 & -1\end{pmatrix}$ is $(\lambda-1)(\lambda-3)$ . Find the eigenvalues and verify using $\text{tr}(A)$ and $\det(A)$ .