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We are asked to find the inverse of [ A = \begin{bmatrix} 2 & 1 & 1 \ 3 & 2 & 1 \ 2 & 1 & 2 \end{bmatrix} ] using the Gauss-Jordan method. Step 1: Form the augmented matrix ([A | I]): [ \left[\begin{array}{ccc|ccc} 2 & 1 & 1 & 1 & 0 & 0 \ 3 & 2 & 1 & 0 & 1 & 0 \ 2 & 1 & 2 & 0 & 0 & 1 \end{array}\right] ] Step 2: _______ ________ ____ _______ _________ _____ __________ __________ ______ _______.
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