线性代数问题,哪位大神可以写一下第一题的具体步骤嘛

2025-05-17 23:48:14
推荐回答(1个)
回答1:

矩阵 A 初等行变换为
[1 2 0 -2 -4]
[0 -1 1 1 1]
[0 -8 8 9 12]
[0 -7 7 8 11]
A 初等行变换为
[1 0 2 0 -2]
[0 1 -1 -1 -1]
[0 0 0 1 4]
[0 0 0 1 4]
A 初等行变换为
[1 0 2 0 -2]
[0 1 -1 0 3]
[0 0 0 1 4]
[0 0 0 0 0]