Linear Algebra Quiz
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SYSTEMS OF LINEAR EQUATIONS & MATRICES
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Let II be the 2×22 \times 2 identity matrix and let A=(7326)A = \begin{pmatrix} 7 & 3 \\ 2 & 6 \end{pmatrix}. For which value of the scalar kk is the determinant of the matrix A−kIA - kI equal to 6?
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