求最行简化阶梯形矩阵:1 2 3 4 0 -1 0 -1 1 1 3 2 2 2 6 4

问题描述:

求最行简化阶梯形矩阵:1 2 3 4 0 -1 0 -1 1 1 3 2 2 2 6 4
1 2 3 4
0 -1 0 -1
1 1 3 2
2 2 6 4

r1-r3,r4-2r3
0 1 0 2
0 -1 0 -1
1 1 3 2
0 0 0 0
r2+r1,r3-r1
0 1 0 2
0 0 0 1
1 0 3 0
0 0 0 0
r1-2r2
0 1 0 0
0 0 0 1
1 0 3 0
0 0 0 0
交换行
1 0 3 0
0 1 0 0
0 0 0 1
0 0 0 0