第三个方程都打错了,请改正
求线性方程组X1 -X2+X4=2 X1-2X2+X3+4X4=3 2X1-3X2+X2+5X4=5 急求~~
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求非其次线性方程组 x1+x2+2x3-x4=1;2X1+3X2+X3-2X4=4;3X1+4X2+3X3-3X4=5的
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.解线性方程组｜X1+X2+X3+X4=5 ｜X1+2X2-X3+4X4=-2 ｜2X1-3X2-X3-5X4=-2 ｜
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求线性方程组的通解 2x1-3x2+5x3+7x4=1 4x1-6x2+2x3+3x4=2 2x
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求解线性方程组 x1-2x2+3x3-x4-x5=2 x1+x2-x3+x4-2x5=1 2x1-