| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎, T! u" |/ |7 P9 y+ f% [# j

9 }, Y7 X/ D! Q5 V4 G9 e; e(x - a) = x - a
4 J* W0 ^- {: l& k(x - a) (x - b) = x^2 – ax – bx + ab( J- C" @1 R9 ^" B. [
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc; X( k" T! ^- c' k) T4 b7 r  Y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
9 A0 D1 d1 v+ A2 ?2 Y5 A2 G7 d如此種推，
% l$ \2 t7 j: Y$ w(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???: g5 s3 f) o6 ], `- j

2 [3 e' D  V6 O[ 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! f. P; J' {! V

Originally posted by Triangel at 2007-4-18 01:26 PM:+ u2 q7 ^/ L; N
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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2 ]" W  y7 e; ~/ Q+ n, y[ 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:
4 g7 W' E" z5 E+ v3 K* C' s咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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' @8 I. g$ Z1 X) oThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:& I# `6 S% G$ \* v# W6 Q
第一個答中有獎
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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:
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9 W$ E2 X! W& R) q' f% H(x-x)= 0 ，所以答案係0，is it?

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- ]% f, i4 N$ l1 a# D- v% E/ ^唔似a.math題
/ |3 L! `+ o4 |5 L  m; }似IQ題=.=1 k! }3 a  f/ q/ z! b- A
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[ 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:
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2 {: \3 ^% X6 Y8 w(x-x)= 0 ，所以答案係0，is it?

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1 A' m, N! c2 ~% r6 B  wBingo~

waikong

我係學校個學生會單張見過
( f3 s# u$ [* X) ~9 N* R8 _1 v5 p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.........; p9 d* P( F  K5 [" h; a  d$ l" {
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這條問題，貼落吹水版，名副其實- c) `9 {: T. S2 J6 L
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]