If `A_(i j)`
is the cofactor of the element `a_(i j)`
of the determinant `[[2,-3,-7], [6,0, 4],[1,5 ,7]]`
then write the value of `a_(32)dot`
`A_(32)dot`
Text Solution
Verified by Experts
Given a square matrix, the cofactor of aij is denoted by `A_(ij)=(−1)^(i+j).M^(ij)`, where `M_(ij)` is the minor of the entry `a_(ij)`
`M_(ij)=[[2,5],[6,4]]`
From the matrix, `a_(32)=5`
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