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Home  >>  CBSE XII  >>  Math  >>  Model Papers
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For the matrix \( A= \begin{bmatrix} 1 & 1 & 1 \\ 1 & 2 & -3 \\ 2 & -1 & 3 \end{bmatrix} \), show that \( A^3-6A^2+5A+11I=0.\) Hence, find \(A^{-1}.\)

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