4阶行列的计算1,2,0,1-1,4,-1,52,3,3,13,1,0,

Question

4阶行列的计算 1,2,0,1 -1,4,-1,5 2,3,3,1 3,1,0,

Answer 1

1 2 0 1
-1 4 -1 5
2 3 3 1
3 1 0 -2
2+1,3-2*1,4-3*1 -->
1 2 0 1
0 6 -1 6
0 -1 3 -1
0 -5 0 -5
1 2 0 1
0 0 -1 0
0 0 3 0
0 -5 0 -5
2,3行对应成比例,值为0