求解线性方程组 X1+X2+X3=6 2X1+3X2+X3=11 X1-X2+2X3=5
求解线性方程组:X1+2X2+X3=8,2X1+3X2+X3=11,X1+3X2+3X3=16.
求解线性方程组:x1+x2+x3=6 2x1-x2+3x3=9 2x1+3x2-2x3=2
线性方程组求解 2x1-x2+3x3=3 3x1+x2-5x3=0 4x1-x2+x3=3 x1+3x2-13x3=-6
线性方程组{2x1-x2-2x3=λx1{5x1-3x2-3x3=λx2{-x1+2x3=-λx3有非零解,则λ=
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
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+
求齐次线性方程组{X1+X2+3X3+2X4=0 2X1+3X2+X3-X4=0 5X1+6X2+10X3+5X4=0}
求解线性方程组x1+x2=5,2x1+x2+x3+2x4=1 5x1+3x2+2x3+2x4=3
求解线性方程组:2X1+3X3=1 x1-X2+2x3=1 X1-3X2+4X3=2
解线性方程组X1+X2+X3=6,2X1+3X2+3X3=15,2X1+2X2+3X3=13
.解线性方程组|X1+X2+X3+X4=5 |X1+2X2-X3+4X4=-2 |2X1-3X2-X3-5X4=-2 |