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In linear algebra, the cofactor (sometimes called adjunct) describes a particular construction that is useful for calculating both the determinant and inverse of square matrices. Specifically the cofactor of the entry of a matrix, also known as the 'cofactor of that matrix', is the signed minor of that entry.
Source: Boundless. "Cofactors, Minors, and Further Determinants." Boundless Algebra. Boundless, 06 Jul. 2016. Retrieved 27 Jul.
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