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Questions  >>  CBSE XII  >>  Math  >>  Model Papers
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Using elementary transformation, find the inverse of the matrix $\begin{bmatrix} 3 & 10 \\ 2 & 7 \end{bmatrix} $

$\begin{array}{1 1}A^{-1}=\begin{bmatrix}17 & -1\\-2 & 3\end{bmatrix} \\ A^{-1}=\begin{bmatrix}7 & 10\\2 & 3\end{bmatrix}\\ A^{-1}=\begin{bmatrix}7 & -10\\-2 & 3\end{bmatrix} \\ A^{-1}=\begin{bmatrix}-7 & -10\\-2 & -3\end{bmatrix} \end{array} $

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