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  1. Cofactor

    Linked via "determinant expansion"

    Cofactor in Linear Algebra
    In the context of square matrices, the $(i, j)$-cofactor, denoted $C{ij}$, is intrinsically linked to the Laplace expansion (or determinant expansion) and the calculation of the adjugate matrix. It is defined using the corresponding minor, $M{ij}$.
    Definition and Calculation