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Questions  >>  CBSE XII  >>  Math  >>  Matrices
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If $ A = \begin{bmatrix} 3 & -2 \\ 4 & -2 \end{bmatrix} $ and $ I = \begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix} $ find $k$ so that $A^2 = kA - 2I$

$\begin{array}{1 1} k=1\\ k=2 \\ k=-1 \\ k=0 \end{array} $

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