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作者 Mood310400 在 PTT [ Math ] 看板的留言(推文), 共6則
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Re: [中學] 排列問題
[ Math ]6 留言, 推噓總分: +2
作者: a01059942 - 發表於 2011/04/10 00:45(13年前)
3F推Mood310400:3的倍數 要讓四個數字相加也是3的倍數04/10 01:05
4F→Mood310400:所以像 2個A 1B 1C 會變成3N+3 就會被3整除04/10 01:05
5F→Mood310400:同樣 2B 2C 就會變成3M+604/10 01:06
[機統] 抽球機率的問題
[ Math ]3 留言, 推噓總分: +3
作者: tysh0703 - 發表於 2011/03/28 22:54(13年前)
1F推Mood310400:所以意思是共取12顆 12顆都是從A取嗎= =?03/28 23:07
[微積] 請問delta function可以微分嘛
[ Math ]12 留言, 推噓總分: +2
作者: konayuki - 發表於 2011/02/13 16:04(13年前)
12F推Mood310400:一樓gj02/17 15:59
[中學] 機率
[ Math ]5 留言, 推噓總分: +4
作者: devise - 發表於 2011/02/10 16:41(13年前)
4F推Mood310400:先抽後抽都一樣 答案錯了02/10 17:38
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