Question 7
(i) Show that the matrix 1 1 5
| A | 1 | 2 | 1 |
|---|
5 1 3 / − = − is a symmetric matrix. (ii) Show that the matrix 0 1 1
| A | 1 | 0 | 1 |
|---|
1 1 0 / − = − − is a skew symmetric matrix.
SOLUTION
→→→→
(i) Show that the matrix 1 1 5
| A | 1 | 2 | 1 |
|---|
5 1 3 / − = − is a symmetric matrix. (ii) Show that the matrix 0 1 1
| A | 1 | 0 | 1 |
|---|
1 1 0 / − = − − is a skew symmetric matrix.