Consider the $2 \times 2$ matrix. $\begin{bmatrix} 9 & 12 \\ -4 & -5 \end{bmatrix}$ Determine the characteristic polynomial. (Use the variable lambda ($\lambda$).) Determine the eigenvalues and corresponding eigenspaces. (Order eigenvalues from smallest to largest.) $\lambda_1 = $ has eigenspace span $\begin{bmatrix} \\ \end{bmatrix}$ $\lambda_2 = $ has eigenspace span $\begin{bmatrix} \\ \end{bmatrix}$
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The characteristic polynomial is found by taking the determinant of the matrix A - λI, where A is the given matrix, λ is the eigenvalue, and I is the identity matrix of the same size as A. In this case, the given matrix is a 2x2 matrix, so the identity matrix Show more…
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