Find the co-factor of the element 7 of the matrix `[[4,-8,6],[-1,1,5],[7,3,-4]]`

The cofactor of element -7 in the matrix [[5,6,-3],[-4, 3, 2],[-4,-7,3]] is

Find the rank of the matrix A=[[9,7,3,6],[5,-1,4,1],[6,8,2,4]]

4.Find the rank of the matrix [[3,4,1,2],[3,2,1,4],[7,6,2,5]]

4.Find the rank of the matrix [[3,4,1,2],[3,2,1,4],[7,6,2,5]]

1.Find the rank of the matrix [[1,-2,3,4],[-2,4,-1,-3],[-1,2,7,6]]

The co-factor of elements of the second row of [[1, 2, 3], [-4, 3, 6], [2, -7, -39]] are

(a) Find the rank of the matrix [[2,1,4,7],[3,6,2,1],[0,0,1,5]]

Find the matrix of co - factors for matrix [[1,3],[4,-1]]

Find the minors and cofactors of the elements of the following determinants: abs([2,-3,5],[6,0,4],[1,5,-7])

Find the rank of the matrix [[1,2,3,0],[2,4,3,2],[3,2,1,3],[6,8,7,5]]