来为CDer做点什么吧…数学小狗答案+简略解释版（12日22：45 update 210）

redhat158 · 发表于 2010-1-11 19:10:43

想為一下12 題 <!-- /* Font Definitions */ @font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-alt:宋体; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;}@font-face {font-family:新細明體; panose-1:2 2 3 0 0 0 0 0 0 0; mso-font-alt

MingLiU; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:1627421319 -2147483648 8 0 66047 0;}@font-face {font-family:"\@新細明體"; panose-1:2 2 3 0 0 0 0 0 0 0; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:"\@SimSun"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:10.5pt; mso-bidi-font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:SimSun; mso-font-kerning:1.0pt; mso-fareast-language:ZH-CN;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;}div.Section1 {page:Section1;}-->是如果n在一個集合中，則n+1也在集合中，問100是否在集合中

1.50在集合中
2.101在集合中
why choose 選A?

redhat158 · 发表于 2010-1-11 19:13:12

<!-- /* Font Definitions */ @font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-alt:宋体; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;}@font-face {font-family:新細明體; panose-1:2 2 3 0 0 0 0 0 0 0; mso-font-alt

MingLiU; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:1627421319 -2147483648 8 0 66047 0;}@font-face {font-family:"\@新細明體"; panose-1:2 2 3 0 0 0 0 0 0 0; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:"\@SimSun"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:10.5pt; mso-bidi-font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:SimSun; mso-font-kerning:1.0pt; mso-fareast-language:ZH-CN;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;}div.Section1 {page:Section1;}-->
n!/4！（n-4）! = (n-4)!/(n-5)! 求N

<!-- /* Font Definitions */ @font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-alt:宋体; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;}@font-face {font-family:新細明體; panose-1:2 2 3 0 0 0 0 0 0 0; mso-font-alt

MingLiU; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:1627421319 -2147483648 8 0 66047 0;}@font-face {font-family:"\@新細明體"; panose-1:2 2 3 0 0 0 0 0 0 0; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:"\@SimSun"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:10.5pt; mso-bidi-font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:SimSun; mso-font-kerning:1.0pt; mso-fareast-language:ZH-CN;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;}div.Section1 {page:Section1;}-->求問計算過程謝謝

redhat158 · 发表于 2010-1-11 19:14:31

someone can help me? I do not want to make the display so dirty..

redhat158 · 发表于 2010-1-11 19:19:54

某個程式分為5個步驟，問當x=100，y=3時候，需要經過幾次第二步驟？（答案：6）

V3 PS 有那個STEP題,大家多看看,就是一共經歷了幾個STEP2

第一次100-50 ；第2次50-25 ；第3次25-12.5；第4次 12.5-6.25；第5次6.25-3.125；第6次3.125-1.56；

所以答案是：7次
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MingLiU; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:1627421319 -2147483648 8 0 66047 0;}@font-face {font-family:"\@新細明體"; panose-1:2 2 3 0 0 0 0 0 0 0; mso-font-charset:136; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:3 137232384 22 0 1048577 0;}@font-face {font-family:"\@SimSun"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:10.5pt; mso-bidi-font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:SimSun; mso-font-kerning:1.0pt; mso-fareast-language:ZH-CN;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;}div.Section1 {page:Section1;}-->

kimmy530 · 发表于 2010-1-11 19:22:04

我数学也很烂，怎么就没个数学系的男朋友呢？哈哈。。。谢谢楼主！

waytodream · 发表于 2010-1-11 21:00:50

小兄弟，谢谢你啊积极做数学jj, 感觉你好体贴你gf哦。真好。

13号考试，词汇又很弱，又木有做过gwd, 你赶快多看看jj吧，说不定人品大爆发全遇上了。

祝好运~

rick4068 · 发表于 2010-1-11 22:18:08

sorry 密碼還是打不開呢....
有沒有大大可以解一下咧???
thx ！！！

mydloveal · 发表于 2010-1-11 23:05:53

sorry 密碼還是打不開呢....
有沒有大大可以解一下咧???
thx ！！！

-- by 会员 rick4068 (2010/1/11 22:18:08)

你……用了繁体字吧- -！密码是简体中文……

kb_phelps · 发表于 2010-1-12 00:17:16

呵呵，加油！。

hexice1 · 发表于 2010-1-12 00:20:01

谢谢这些天来你为大家的付出，祝你考出理想的成绩！加油！！！

来为CDer做点什么吧…数学小狗答案+简略解释版（12日22：45 update 210）

12

18

I do not know why there are so many "unknown codes" appear when I post

No6: is the answer 7 or 6? confusing....

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