解线性方程组 X1-X2+2X4+X5=0 3X1-3X2+7X4=0 X1-X2+2X3+3X4+2X5=0 2X1-
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解线性方程组 X1-X2+2X4+X5=0 3X1-3X2+7X4=0 X1-X2+2X3+3X4+2X5=0 2X1-2X2+2X3+7X4-3X5=0
系数矩阵 A=
1 -1 0 2 1
3 -3 0 7 0
1 -1 2 3 2
2 -2 2 7 -3
r2-3r1,r3-r1,r4-2r1
1 -1 0 2 1
0 0 0 1 -3
0 0 2 1 1
0 0 2 3 -5
r1-2r2,r3-r2,r4-3r2
1 -1 0 0 7
0 0 0 1 -3
0 0 2 0 4
0 0 2 0 4
-->
1 -1 0 0 7
0 0 1 0 2
0 0 0 1 -3
0 0 0 0 0
方程组的通解为:c1(1,1,0,0,0)' + c2(-7,0,-2,3,1)'.
1 -1 0 2 1
3 -3 0 7 0
1 -1 2 3 2
2 -2 2 7 -3
r2-3r1,r3-r1,r4-2r1
1 -1 0 2 1
0 0 0 1 -3
0 0 2 1 1
0 0 2 3 -5
r1-2r2,r3-r2,r4-3r2
1 -1 0 0 7
0 0 0 1 -3
0 0 2 0 4
0 0 2 0 4
-->
1 -1 0 0 7
0 0 1 0 2
0 0 0 1 -3
0 0 0 0 0
方程组的通解为:c1(1,1,0,0,0)' + c2(-7,0,-2,3,1)'.
X1 - X3 - X4 -5X5=0 X1+2X2+3X3+3X4+7X5=0 X1+X2+X3+X4+X5=0 X2
求齐次方程组的的一般解(x1+x2+x3+x4+x5=0,3x1+2x2+x3+x4-3x5=0,x1+2x3+2x4+
简单线代题///X1+X2+X3+X4+X5=13X1+2X2+X3+X4+3X5=0 X2+2X3+2X4+6X5=3
求齐次线性方程组x1+2x2+x3+x4+x5=1 2x1+4x2+3x3+x4+x5=2 -x1-2x2+x3+3x4
解方程组X2+X3+X4=1 X1+X2+X3=5 X3+X4+X5=-5 X4+X5+X1=-3 X5+X1+X2=2
解线性方程组 求齐次线性方程组X1+X2+X3+X4=0,2X1+3X2-X3-2X4=0,5X1+6X2+2X3+X4
感激不尽求线性方程组基础解系x1+x2+3x4-x5=0x1-x2+2x3-x4=04x1-2x2+6x3+3x4-4x
解线性方程组 求齐次线性方程组X1+X2+X3+X4=0,2X1+3X2+4X3+5X4=0,4X1+5X2+6X3+7
求线性方程组 x2-x3-x4=0 x1+x2-x3+3x4=1 x1-x2+x3+5x4=-1 x1+2x2-2x3+
求线性方程组一般解,2X1+X2-2X3+3X4=03X1+2X2-X3+2X4=0X1+X2+X3-X4=0
求齐次线性方程组X1+X2+2X2-X4=0,-X1-3X3+2X4=0,2X1+X2+5X3-3X4=0的一般解.
确定a的值,使线性方程组{X1+X2+X3+X4=1,3X1+2X2+X5+X4=0,X2+2X3+2X4=a,5X1+