Ononot — Consider A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}. W

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Eigenvalues & Eigenvectorshard

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Consider $A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}$ . What is the sum of the eigenvalues of $A^{-1}$ ?