高等代数,这道题怎么做

2024-12-19 02:50:46
推荐回答(1个)
回答1:

A 初等行变换为
[1 1 -2 1 4]
[0 -3 3 -1 -6]
[0 -10 10 -6 -12]
[0 3 -3 4 -3]
A 初等行变换为
[1 0 -1 2/3 2]
[0 1 -1 1/3 2]
[0 0 0 -8/3 8]
[0 0 0 3 -9]
A 初等行变换为
[1 0 -1 0 4]
[0 1 -1 0 3]
[0 0 0 1 -3]
[0 0 0 0 0]
a1, a2, a4 是一个极大线性无关组
a3 = -a1-a2
a5 = 4a1+3a2-3a4