| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) v! B/ J9 D$ D+ g4 `& Q. i2 b

( o! J: x( O0 Z  }2 E; `4 \2 w(x - a) = x - a$ O$ ^5 z: v! }+ K) e2 ~" V
(x - a) (x - b) = x^2 – ax – bx + ab
5 I. Z+ t/ O4 V6 i! u5 k(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
* o. e7 p9 w+ A8 S. X(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
- K2 z% {$ p8 Z) d8 `, w( L如此種推，2 Y7 p* {9 D4 Z; F- c
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???0 _" H9 p3 h/ i' U4 `# Q/ |
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題: W4 ^( E' K1 W6 \! |3 v. D! {0 R

Originally posted by Triangel at 2007-4-18 01:26 PM:2 `+ Z/ @9 ~3 d  T& S
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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% H% w* d) [% u[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:- t, f. `4 g5 r: x) ?: G  L
咁難既=.=") I0 P- f1 [) c5 _; I! e6 m. R9 a
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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3 i1 Z; L- j6 b% d/ s% ~& |  {. {Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
  o+ H. N/ O7 r" ]8 }7 s第一個答中有獎" g  {; F; L8 V4 Z7 K$ C% ]& ~" A
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(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:. j  ?5 S" j& o" v5 N: C6 O* I

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- r5 Y+ B& Y3 v(x-x)= 0 ，所以答案係0，is it?

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+ |  x  S. m( t  E8 \9 C4 O; t唔似a.math題8 A7 X/ Z( N- I
似IQ題=.=% r1 G5 J/ z# v, e) b9 i# c( Q5 h0 i

2 J4 W$ r+ |& ^" k( ^6 g[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:. r  i, I% ]: X2 U0 \+ I# l
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! X2 L+ n( e4 N) y: V7 P$ [(x-x)= 0 ，所以答案係0，is it?

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" W7 A2 Z9 j+ \5 Y4 B' RBingo~

waikong

我係學校個學生會單張見過
$ p; P. z8 N, P: }- m諗左一陣先諗到

playbr2

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

karen0123

(哭)~~~~~其實我都知係0.........
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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 ]