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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% c$ d5 w" N& _* [
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(x - a) = x - a
9 F9 q! ^7 }8 O2 ]0 a) H(x - a) (x - b) = x^2 – ax – bx + ab
, M' r* y. N4 U& a/ s% a4 G(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: c2 E# J; I) ^" B; l6 G3 X1 O9 @(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
) y# Z) }$ X6 _如此種推，
/ T" g* N0 X: w6 j3 F  U(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???: y' [! y  ~% ^$ w3 @& o( V
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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* ?! \" k4 V( y. W. r
Originally posted by Triangel at 2007-4-18 01:26 PM:
2 s& w  Z. u$ {% W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc1 `2 G( ~! t6 b2 q1 y& b% G

5 x* r7 C% X# y% l
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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:
7 _/ t: T1 d- e  l$ S5 k7 R咁難既=.="
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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:, x+ U( T, f' j2 C1 p! R, U* Y/ |
第一個答中有獎, D) v4 O& i$ V/ H) o4 p4 ]
& Q/ F( `; ^" L6 p8 V' }5 s
(x - ...
5 e; V- c/ x  }1 }5 F/ U
5 B4 Q4 \% Y) M: R3 p(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:* P) j2 S' d1 ^! f! P
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(x-x)= 0 ，所以答案係0，is it?
! X6 \! N5 r+ l: R# m1 i; ]3 c, m# u5 `! u4 z! Q( _

5 _5 h# @- g8 M6 ?6 a9 Y唔似a.math題
( ]1 ~) G% B; |7 D( R( G- X# a似IQ題=.=& o! p2 m% a2 m1 g$ z

+ D% x- u" A8 t8 J$ T[ 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:, y6 [  L6 Q2 V" U$ H; c
' R' [) V% P0 u1 @8 Z( F4 g, B( p
3 D* Z3 u, ~8 Q1 Y4 ^, L
(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( ^" R' w4 Y- ^
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.........  N, g" n* i$ ]6 F* G% O* d

* y) I  h/ e4 M! H. ]/ m( y8 N1 k這條問題，貼落吹水版，名副其實
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/ a4 I1 i2 S5 B: v6 v& c2 O[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]



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