| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎% Z% G/ P' k" t! E

. z1 `  c# A  P6 z(x - a) = x - a
1 [, {/ f; F3 B4 O2 Q2 v(x - a) (x - b) = x^2 – ax – bx + ab# @+ q. L: E- q- B- ~2 B& H
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc+ c! o( W9 P6 i" l4 S2 z
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd) h' E2 V" u- }" w' I
如此種推，8 j. e" Y. W5 w: _1 n7 |
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:" \# {1 K1 w9 y4 F
(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 ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:
+ R0 y7 E  l: y4 m) X0 ^咁難既=.="( M$ U8 d; I7 z2 o$ s

2 O* a& |. Y. d; N7 {[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 r. |, N: J- H3 ^0 Q- o, X, L第一個答中有獎
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(x - ...

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; e) T3 g: q  ~# p  U9 M5 m(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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(x-x)= 0 ，所以答案係0，is it?

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# B% [: M; a! W7 {; V" {9 z唔似a.math題  `; G- P; |& L1 ~8 Y, y
似IQ題=.=: {- M% F% T7 S# p4 E- s# Y
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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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* G' L  {5 K7 j& {(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過) I" n- s: s" Y( ?+ z( P0 D0 H
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.........6 W/ S0 A/ V9 y  U9 R0 A. K
8 S" Z/ R( k8 d4 e+ H5 j# U4 C* C
這條問題，貼落吹水版，名副其實
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1 f* K, N, _4 ?0 e8 x[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]