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Questions  >>  CBSE XII  >>  Math  >>  Model Papers
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Using elements transformation find the inverse of $ \begin{bmatrix} 2 & -6 \\ 1 & -2 \end{bmatrix} $

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

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