Answer :

Theorem: Aij is found by deleting ith rowand jth column, the determinant of left matrix is called cofactor with multiplied by (-1)(i+j).

Given: i=3 and j=2.

A32=(-1)(3+2)(2 × 4-6 × 5)

=-1 × (-22)



a32A32= 5 × 22


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