Saved Bookmarks
| 1. |
Let A = [aij] be a square matrix of order 3 x 3 and |A|= -7. Find the value of a11A21 + a12A22 + a13A23 where Aij is the cofactor of element aij. |
|
Answer» The value of a11A21 + a12A22 + a13A23 is 0 |
|