Matrices
December 8, 2016Cofactor of an element $a_{ij}$ in |A|: $A_{ij} = (-1)^{i+j} M_{ij}$ $|A| = |\table a_{11},a_{12},a_{13};a_{21}, a_{22},a_{23};a_{31},a_{32},a_{33}|$ e.g. $A_{11} =(-1)^{1+1}M_{11} =... View Article
Cofactor of an element $a_{ij}$ in |A|: $A_{ij} = (-1)^{i+j} M_{ij}$ $|A| = |\table a_{11},a_{12},a_{13};a_{21}, a_{22},a_{23};a_{31},a_{32},a_{33}|$ e.g. $A_{11} =(-1)^{1+1}M_{11} =... View Article