X1+X2-2X3+X4=1 2X1+3X2-X3+3X4=-2 -X1-2X2-X3-2X4=3
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亲 你好 给定线性方程组如下：X1 + X2 - 2X3 + X4 = 12X1 + 3X2 - X3 + 3X4 = -2-X1 - 2X2 - X3 - 2X4 = 3我们可以使用消元法或矩阵运算来求解该方程组。以下是使用矩阵运算的步骤：
咨询记录 · 回答于2023-06-25
-X1-2X2-X3-2X4=3
X1+X2-2X3+X4=1
2X1+3X2-X3+3X4=-2
X1+X2-2X3+X4=1
-X1-2X2-X3-2X4=3
2X1+3X2-X3+3X4=-2
X1+X2-2X3+X4=12X1+3X2-X3+3X4=-2-X1-2X2-X3-2X4=3
求解非齐次方程组X1+X2-2X3+X4=12X1+3X2-X3+3X4=-2-X1-2X2-X3-2X4=3
2X1+3X2-X3+3X4=-2
X1+X2-2X3+X4=1
-X1-2X2-X3-2X4=3
2X1+3X2-X3+3X4=-2
X1+X2-2X3+X4=1
-X1-2X2-X3-2X4=3
2X1+3X2-X3+3X4=-2
X1+X2-2X3+X4=1
-X1-2X2-X3-2X4=3
2X1+3X2-X3+3X4=-2
X1+X2-2X3+X4=1
-X1-2X2-X3-2X4=3
2X1+3X2-X3+3X4=-2
X1+X2-2X3+X4=1
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