Question

How to find co-factor of a determinant?​

Answer 1

Step-by-step explanation:

Cofactor of a Determinant

The cofactor is defined as the signed minor. Cofactor of an element aij, denoted by Aij is defined by A = (–1)i+j M, where M is minor of aij

Answer 2

Answer:

let us take an example

111

110

001

here co factor means take a sub matrix

11

11 here the det is 0

take another submatrix

10

01 here the det is 1

Step-by-step explanation:

in the same manner we should do it for other submatrixes