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To find the inverse of the matrix \[ A = \begin{bmatrix} 1 & -1 & 1 \\ 1 & -2 & 4 \\ 1 & 2 & 2 \end{bmatrix} \] using the Gauss-Jordan method, we follow these steps: ### Step 1: Form the Augmented Matrix [A | I] __________ _________ ______ ___ _____ ________ ____ _____ _____ _______ _____.
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