http://www.ck12.org Chapter 8. Systems and Matrices
7.
−1 3 − 4
4 2 1
1 2 5
8.
4 5 8
9 0 1
0 3 − 2
9.
0 7 − 1
2 − 3 1
6 8 0
10.
4 2 − 3
2 4 5
1 8 0
11.
− 2 − 6 − 12
− 1 − 5 − 2
2 3 4
12.
−2 6 3
2 4 0
−8 2 1
13.
2 6 4 6
0 1 0 1
2 4 2 0
−6 2 3 1
14.
5 0 0 1
2 1 8 3
9 3 2 6
−4 2 5 1
- Can you find the determinant for any matrix? Explain.
- The following matrix has a determinant of zero:
[6 4
3 2
]
. If the determinant of a matrix is zero, what does that
say about the rows of the matrix?