作者woncho ( )
看板Grad-ProbAsk
標題[理工] [線代] 空間問題
時間Tue Mar 2 00:52:36 2010
以下是補充過的原題議,
還有b小題複製忘了改,是column才對
答案只有a是錯的
which of these assertions is not logically equivalent to all the others?
(the matrix A is mxn)
n
a) the row vector in A span R
m
b) the
column vector in A span R
c) A has a pivot position in each row
a是錯的,想請教以上三小題的觀念,感謝!
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◆ From: 118.160.183.186
→ BLUEBL00D:FFF 03/02 00:54
推 trovadores:應該都錯 03/02 00:55
推 Am7:取0矩陣就好 03/02 01:43
→ Am7:找到一個反例就可以說他全錯了 03/02 01:43
→ woncho:我再補充清楚原題意好了,還有b小題打錯= =|| 答案是FTT 03/02 07:52
※ 編輯: woncho 來自: 118.160.185.25 (03/02 07:53)
推 Am7:這樣問的話就只是考定義而已 03/02 08:27