Question

Find the Co-Factors of the elements of the
Following matrices
-1 2
-3 4​

Answer 1

co factors of matrix

4 -2

_3 1

Answer 2

Answer:

A11 = 4

A12 = -(-3) =3

A21 = - (2) = 2

A22 = -1

cofactors are 4,3,2,-1 .