Let A=(a_ij) be A nonzero matrix of order 3, |A| is the determinant of A,

匿名用户 最后更新于 2021-09-27 15:16 数学类Mathematics

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Let A=(aii) be A nonzero matrix of order 3, is the determinant of A, Aii is the cofactor of aij, if ajj +Aj =(i, j 1,2,3), to calculate.


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