求解下列齐次线性方程组 x1+x2+2x3?x4=0 2x1+x2+x3?x4=0 2x1+2x2
求解下列齐次线性方程组 x1+x2+2x3?x4=0 2x1+x2+x3?x4=0 2x1+2x2
日期:2020-03-24 11:01:34 人气:1
1 1 2 -1
2 1 1 -1
2 2 1 2
-2r1+r2;-2r1+r3
1 1 2 -1
0 -1 -3 -1
0 0 -3 4
R=3,n-R=1
-3x3+4x4=0
so,X=K( 10,-15 4,3 )T