1、5/4x3+5/4 2、6/11x4/17+4/11x5/17 3、36x3/4-3÷4-3/4x3 4、23x(2/23+1/5)x5

求下列非齐次线性方程组的通解(1)｛x1+x2+x3+x4+x5=2；x1+2x2-4x5=-2；x1+2x3+2x4+6x5=6；4x1+5x2+3x3+3x4-x5=4｝(2)｛x1-x2+5x3-x4=1；x1+x2-2x3+3x4=1；2x1+3x3+2x4=2；2x1+4x2-11x3+10x4=2｝(3)｛x1+x2+x3+x4+x5=1；3x1+2x2+x3+x4-3x5=0 用初等行变换来解下列线性方程组（1）2x1-x2+3x3=3 3x1+x2-5x3=0 4x1-x2+x3=3 x1+3x2-13x3=-6(2) x1-2x2+x3+x4=1 x1-2x2+x3-x4=-1 x1-2x2+x3-5x4=5(3) x1-x2+x3-x4=1 x1-x2-x3+x4=0 x1-x2-2x3+2x4=-1/2 非齐次线性方程组X1-5X2+2X3-3X4=11 5X1+3X2+6X3-X4=-1 2X1+4X2+2X3+X4=-6用导出组的基础解系表示通解 用基础解系表示下列线性方程组得全部解:(x1)- 5(x2)+ 2(x3)- 3(x4)=11 5(x1)+3(x2)+6(x3)-(x4)=-1 2(x1)+4(X2)+2(X3)+(x4)=-6 求非齐次线性方程组的基础解系及其通解 X1-5X2+2X3-3X4=11 3X2+6X3-X4=1 2X1+4X2+2X3+X4=-6 x4-x3-5x2-6x-4 解线性方程组x1+x2+3x3+4x4=5 2x1+4x2+4x3+6x4=8 -x1-2x2-x3-2x4=-3 ｛2X1-X2+3X3=33X1+X2-5X3=04X1-X2+X3=3X1+3X2-13X3=-6{X1-2X2+3X3-4X4=4X2-X3+X4=-3X1+3X2-3X4=1-7X2+3X3+X4=-3 非齐次线性方程组 解以下线性方程组x1+x2+x3+x4=5x1+2x2-x3+4x4=-22x1-3x2-x3-5x4=-23x1+x2+2x3+11x4=0x1=1;x2=2;x3=3;x4=-1 求非其次线性方程组 {x1+2x2+x3+x4+x5=1x1+2x2+x3+x4+x5=12x1+4x2+3x3+x4+x5=2-x1-2x2+x3+3x4-x5=5 2x3+4x4-2x5=6 的一般解 .解线性方程组｜X1+X2+X3+X4=5 ｜X1+2X2-X3+4X4=-2 ｜2X1-3X2-X3-5X4=-2 ｜3X1+X2+2X3+11X4=0 用克拉默法则解方程组 X1+X2+X3+X4=5 X1-2X2-X3+4X4=-2 2X1-3X2-X3-5X4=-2 3X1+X2+2X3+11X4=0 X1+X2+X3+X4=5;X1+2X2-X3+4X4=-2;2X1-3X2-X3-5X4=-2;3X1+X2+2X3+11X4=0;多谢 非齐次线性方程组求解.x1+x2+2x3+3x4=1 2x1+3x2+5x3+2x4=-3 3x1-x2-x3-2x4=-4 3x1+5x2+2x3-2x4=-10 运筹学线性规划化标准型目标函数：min z=x1-x2-x3+2x4约束条件：10x1+x2-x3-4x4=77x1+6x2-2x3-5x4>=104x1-8x2+6x3+x4 讨论2X1+X2-X3+X4=1 3X1-2X2+2X3-3X4=2 5X1+X2-X3+2X4=-1 2X1-X2+X3-3X4=4的解的情况 解方程组:x1+x2+x3+x4+x5=7 3x1+2x2+x3+x4-3x5=－2 x2+2x3+2x4+6x5=23 5x1+4x2-3x3+3x4-x5=10 求非齐次线性方程组的通解x1+3x2+5x3-4x4=1x1+3x2+2x3-2x4+x5=-1x1-2x2+x3-x4-x5=3x1+2x2+x3-x4-x5=3