设有线性方程组 (1+λ)x1+x2+x3=0； x1+(1+λ)x2+x3=3； x1+x2+(1

λ为何值时,其次线性方程组有解λx1+11x2+(λ+1)x3=0x1-（λ-8）x2+2x3=02x1+14x2+(λ+3）x3=0λx1+11x2+(λ+1)x3=0x1-（λ-8）x2+2x3=

用初等行变换来解下列线性方程组（1）2x1-x2+3x3=33x1+x2-5x3=04x1-x2+x3=3x1+3x2-13x3=-6(2)x1-2x2+x3+x4=1x1-2x2+x3-x4=-1x

X1+X2-3X3-X4=13X1-X2-3X3+4X4=4X1+5X2-9X3-8X4=0解线性方程组X1+X2-3X3-X4=13X1-X2-3X3+4X4=4X1+5X2-9X3-8X4=0解线

求非其次线性方程组X1+X2-3X3-X4=13X1-X2-3X3+4X4=4X1+X2-9X3-8X4=0求非其次线性方程组X1+X2-3X3-X4=13X1-X2-3X3+4X4=4X1+X2-9

线性方程组X1+X2+X3+X4=0,2X1+X2+X3+2X4=0,3X1+2X2+4X3+4=1线性方程组X1+X2+X3+X4=0,2X1+X2+X3+2X4=0,3X1+2X2+4X3+4=1

线性方程组求解,x1+2x2+x3-x4=13x1+6x2-x3-3x4=0线性方程组求解,x1+2x2+x3-x4=13x1+6x2-x3-3x4=0线性方程组求解,x1+2x2+x3-x4=13x

λ取何值时,线性方程组λ1x1+x2+x3=λ-3x1+λx2+x3=-2x1+x2+λx3=-2无解,有唯一解,有无穷解,求方程组通解λx1+x2+x3=λ-3x1+λx2+x3=-2x1+x2+λ

线性方程组{2x1-x2-2x3=λx1{5x1-3x2-3x3=λx2{-x1+2x3=-λx3有非零解,则λ=线性方程组{2x1-x2-2x3=λx1{5x1-3x2-3x3=λx2{-x1+2x

求线性方程组{X1-3x2-2x3-X4=1;3X1-8X2-4X3-X4=0;-2X1+X2-4X3+2X4=1;-X1-2X2-6X3+X4=2的一般解.求线性方程组{X1-3x2-2x3-X4=

X1-X2-3X3+X4=1X1-X2+2X3-X4=32X1-2X2-11X3+4X4=04X1-4X2+3X3-2X4=10用消元法解线性方程组X1-X2-3X3+X4=1X1-X2+2X3-X4

线性方程组用初等行变换解题x1-x2-x3=23x1+2x2-5x3=02x1-x2-3x3=1求x1.x2.x3线性方程组用初等行变换解题x1-x2-x3=23x1+2x2-5x3=02x1-x2-

用基础解系表示线性方程组的全部解（1）【2x1-x2+x3-2x4=1】（2）【x1-2x2+x3=-5】（3）【x1-x2-x3+x4=0】【-x1+x2+2x3+x4=0】【x1+5x2-7x3=

试用克拉默法则求下列线性方程组的解x1+x3=1;2x1+2x2+3x3=3;x2+x3=-1x1+x3=12x1+2x2+3x3=3x2+x3=-1试用克拉默法则求下列线性方程组的解x1+x3=1;

λ取何值时,齐次线性方程组有非零解(1-λ)x1-2x2+4x3=02x1+(3-λ)x2+x3=0X1+x2+(1-λ)x3=0λ取何值时,齐次线性方程组有非零解(1-λ)x1-2x2+4x3=02

线性方程组3x1-x2+x3=0有非零解,则λ=_______.x1+λx2+x3=0λx1+x2+x3=0线性方程组3x1-x2+x3=0有非零解,则λ=_______.x1+λx2+x3=0λx1

讨论线性方程组﹛X1-2x2+x3=2,3x1+2x2-x3=1,x1+x2+x3=1解的情况,求救讨论线性方程组﹛X1-2x2+x3=2,3x1+2x2-x3=1,x1+x2+x3=1解的情况,求救

解下列线性方程组x1+2x2+3x3=12x1+2x2+5x3=23x1+5x2+x3=3解下列线性方程组x1+2x2+3x3=12x1+2x2+5x3=23x1+5x2+x3=3解下列线性方程组x1

解线性方程组（x1-x2+x3-x4=1,x1-x2-x3+x4=0,x1-x2-2x3+2x4=0.5)解线性方程组（x1-x2+x3-x4=1,x1-x2-x3+x4=0,x1-x2-2x3+2x

用克莱姆法则解线性方程组x1+x2-2x3=-32x1+x2-x3=1x1-x2+3x3=8用克莱姆法则解线性方程组x1+x2-2x3=-32x1+x2-x3=1x1-x2+3x3=8用克莱姆法则解线

解非齐次线性方程组λ取何值时,非齐次线性方程组λx1+x2+x3=1x1+λx2+x3=λx1+x2+λx3=λ^2(1)有唯一解;(2)无解;(3)有无穷多个解?解非齐次线性方程组λ取何值时,非齐次