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作者 TOOYA 在 PTT [ Math ] 看板的留言(推文), 共78則
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[微積] 定積分求解
[ Math ]1 留言, 推噓總分: +1
作者: maroonfire - 發表於 2017/07/24 13:27(8年前)
1FTOOYA: 你該不會把arcsin當成sin的倒數吧?07/25 15:04
[中學] 高一排列組合
[ Math ]16 留言, 推噓總分: +4
作者: revengeiori - 發表於 2017/04/20 22:22(8年前)
14FTOOYA: 這樣的10位數必定是9的倍數,所以只要要求是1111104/21 15:47
15FTOOYA: 的倍數即可。04/21 15:47
16FTOOYA: 用theoculus的作法,2^5*5!-2^4*4!=3456沒錯04/21 16:33
[代數] 異或算符
[ Math ]8 留言, 推噓總分: +5
作者: arashi2011 - 發表於 2016/11/10 17:03(9年前)
6FTOOYA: U跟倒U是集合用的,V跟倒V是敘述用的11/11 13:54
[其他]求高手幫忙解這題!!!
[ Math ]11 留言, 推噓總分: +5
作者: vcxz20033 - 發表於 2016/11/10 14:27(9年前)
7FTOOYA: 樓上小學學一元二次方程式!真厲害!11/11 13:56
Re: [代數] 多項式整除
[ Math ]13 留言, 推噓總分: +5
作者: tzhau - 發表於 2016/10/16 00:25(9年前)
4FTOOYA: a>1/4 ,a|2,a可能是1,2,如何排除1的可能?10/18 14:16
5FTOOYA: 無正根為什麼是判別式<0啊? 判別式<0不是無實根嗎10/18 14:34
6FTOOYA: ?10/18 14:34
9FTOOYA: 我是問"他的敘述中",怎麼會無正根使用判別式<0,以10/18 17:04
10FTOOYA: 及如何排除a=1,不過這題也是蠻有趣的10/18 17:04
[中學] 區間問題
[ Math ]6 留言, 推噓總分: +2
作者: iPhcne - 發表於 2016/07/05 00:51(9年前)
6FTOOYA: 脫離這些數學太久?你該不會是在做家教吧?07/05 04:45
Re: [中學] 求圓的方程式
[ Math ]12 留言, 推噓總分: +7
作者: binbinthink - 發表於 2016/06/05 09:53(9年前)
11FTOOYA: 把點擔心方程式就不對了,這樣驗算很難嗎?06/05 16:19
[其他] 各位數學者 大型計算機即將降落於此
[ Math ]3 留言, 推噓總分: +1
作者: lkj2000168 - 發表於 2016/05/29 11:42(9年前)
1FTOOYA: http://i.imgur.com/cFpNZyN.jpg 搜尋3d lmd真的05/29 13:41
2FTOOYA: 可以找到你的影片嗎?05/29 13:41
[微積] 根號求極限
[ Math ]3 留言, 推噓總分: +3
作者: shan830609 - 發表於 2016/05/25 23:03(9年前)
3FTOOYA: http://i.imgur.com/L4a9IwL.jpg05/29 13:52
[微積] 極限!?
[ Math ]3 留言, 推噓總分: +2
作者: ffej8797 - 發表於 2016/05/25 18:52(9年前)
3FTOOYA: http://i.imgur.com/IcAssTh.jpg05/29 13:59