Re: [理工] [線代] 線性方程式觀念題
※ 引述《milicic2103 (神)》之銘言：
: (87年北科大通訊)
: If a linear system Ax=b has more than one solution,
more than one => rank(A|b) = rank(A) < dim(A)
So there is at least one row can span from the other rows.
: then so does the system Ax=0
The solution you can image such x1=a, x2=b, x3 (- R
because A can reduce to two rows.
: 答案是 true
: 有大大可以解釋一下嗎? 我不知道從哪推起 沒想法
There is another way, b also can be 0 .
So Ax=b has more than one solution even if b=0 .
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