把矩阵化为最简形,
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把矩阵化为最简形,
![](http://img.wesiedu.com/upload/8/63/8635517f7235a7485086090c2ad7c288.jpg)
![](http://img.wesiedu.com/upload/8/63/8635517f7235a7485086090c2ad7c288.jpg)
![把矩阵化为最简形,](/uploads/image/z/15479379-27-9.jpg?t=%E6%8A%8A%E7%9F%A9%E9%98%B5%E5%8C%96%E4%B8%BA%E6%9C%80%E7%AE%80%E5%BD%A2%2C%26nbsp%3B)
3-r1
1 2 3 4 -4
0 1 -1 1 2
0 1 -3 -1 3
0 -2 1 1 2
r1+r4,r3-r2,r4+2r2
1 0 4 5 -2
0 1 -1 1 2
0 0 -2 -2 1
0 0 -1 3 6
r1+2r3,r4*(-1),r2+r4,r3+2r4
1 0 0 1 0
0 1 0 -2 -4
0 0 0 -8 -11
0 0 1 -3 -6
r3*(-11/8),r1-r3,r2+2r3,r4+4r3
1 0 0 0 -11/8
0 1 0 0 -10/8
0 0 0 1 11/8
0 0 1 0 -15/8
r3r4
1 0 0 0 -11/8
0 1 0 0 -10/8
0 0 1 0 -15/8
0 0 0 1 11/8
再问:![](http://img.wesiedu.com/upload/8/92/89246564c828280eb7099dc76860d10a.jpg)
再问: 老师 还想向你请教第4题。
再答: 请另提问
1 2 3 4 -4
0 1 -1 1 2
0 1 -3 -1 3
0 -2 1 1 2
r1+r4,r3-r2,r4+2r2
1 0 4 5 -2
0 1 -1 1 2
0 0 -2 -2 1
0 0 -1 3 6
r1+2r3,r4*(-1),r2+r4,r3+2r4
1 0 0 1 0
0 1 0 -2 -4
0 0 0 -8 -11
0 0 1 -3 -6
r3*(-11/8),r1-r3,r2+2r3,r4+4r3
1 0 0 0 -11/8
0 1 0 0 -10/8
0 0 0 1 11/8
0 0 1 0 -15/8
r3r4
1 0 0 0 -11/8
0 1 0 0 -10/8
0 0 1 0 -15/8
0 0 0 1 11/8
再问:
![](http://img.wesiedu.com/upload/8/92/89246564c828280eb7099dc76860d10a.jpg)
再问: 老师 还想向你请教第4题。
再答: 请另提问