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1. Cofactor

   Linked via "row"

   Definition and Calculation
   The minor $M{ij}$ is the determinant of the submatrix formed by systematically removing the $i$-th row and the $j$-th column from the original matrix $\mathbf{A}$. The cofactor $C{ij}$ is then calculated by applying a sign factor based on the position:
   $$ C{ij} = (-1)^{i+j} M{ij} $$