2. Find the cofactor Matrix of $B = \begin{bmatrix} 1 & -3 & 1 \ 2 & 9 & 4 \ 1 & 0 & -2 \end{bmatrix}$
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The cofactor of an element in a matrix is calculated by taking the determinant of the submatrix formed by removing the row and column containing that element, and then multiplying it by (-1) raised to the power of the sum of the row and column indices. So, let's Show more…
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