作者GI9 ( )
看板Grad-ProbAsk
标题[理工] [线代]-矩阵
时间Thu Dec 17 11:51:27 2009
[a+b ab 0 0]
[ 1 a+b ab 0]
[ 0 1 a+b ab]
[ 0 0 1 a+b]
=M
Show that if a and b are real numbers , which are not both zero ,
then M is invertible
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◆ From: 124.218.25.243
1F：推 windysoul:利用行列式值不等於0即可 12/17 12:00
2F：→ iyenn:这po过了?= = 12/17 12:31
3F：→ GI9:上一题是不可逆的复数 这题是可逆的实数 12/17 12:56
4F：→ iyenn:喔,看到了XDD 12/17 13:14