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標題: | TriTri | A-Math 加分題 | [打印本頁]

作者: Triangel 時間: 2007-4-18 01:26 PM 標題: | TriTri | A-Math 加分題 |

第一個答中有獎6 s0 E" D1 B# y# R( g( R! O/ o
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(x - a) = x - a
(x - a) (x - b) = x^2 – ax – bx + ab
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc( M* c! J& [/ b- X' ?3 u4 P0 R( e
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd L( j- ?4 W( y! J1 T
如此種推，9 n' f" v. y5 W4 }
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???0 m9 Q7 i- p0 p, F% o8 {* j
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

作者: 大大 時間: 2007-4-18 01:41 PM

點解你個問題好似有d問題) E S9 [5 X# x0 Y. B8 o$ l5 k

Originally posted by Triangel at 2007-4-18 01:26 PM:% ^% o* u. r7 H9 B7 x. d( I
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

作者: Triangel 時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:: E- C2 H$ w) @7 M
咁難既=.="* [1 L- `: i! N1 e
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:
# k6 P' ~% ]- v5 [) w( V第一個答中有獎
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(x-x)= 0 ，所以答案係0，is it?

作者: 大大 時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:% h. `: i# ~% N
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4 g+ |$ d6 {1 g5 K5 K! O/ M(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

作者: Triangel 時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:
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0 }& K" w3 H9 S% i(x-x)= 0 ，所以答案係0，is it?

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Bingo~

作者: waikong 時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過

諗左一陣先諗到

作者: playbr2 時間: 2007-4-18 04:00 PM

我吾識答啊http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif~~~ http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif

作者: karen0123 時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0......... v0 P2 y8 |1 t$ r) f# v) P

這條問題，貼落吹水版，名副其實

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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]

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