| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎$ _1 T( Z# f9 V* h. \

* M% }% T% E- r" |& Z0 k(x - a) = x - a
2 G5 w* \2 J  F- E$ d, Z% Z2 O/ V(x - a) (x - b) = x^2 – ax – bx + ab
+ Y2 P" D; D; m3 S. Y$ k7 Y% _(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
3 t# m- W6 F, o(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd+ r7 l# d; s# A2 ]! X
如此種推，* u9 L# R2 F+ K6 I1 v% Z
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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0 z/ e; i% [$ y! J6 H3 T0 P, B5 x[ 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:  _) A4 C3 g+ {+ L5 h
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 q4 E$ {7 S; Z! E7 \* N

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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:' C& G9 J" z& z# Z3 P. T3 ?# C
咁難既=.="
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8 f4 F3 ?0 q: h4 V[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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# Q+ B) [* l% w: {* h9 dThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:. X5 W9 G! h6 U- X% h" x0 L+ W$ x
第一個答中有獎9 i5 G# h* R& @+ e5 O+ f
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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:: V* @9 q5 L& O+ H. k
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, b1 J5 {% ^- z# ?) P: _(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題$ U2 E# c# l0 R- Y( B( y1 ]% ~, k% r
似IQ題=.=
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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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4 H, D0 C( N( {3 p(x-x)= 0 ，所以答案係0，is it?

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3 Y' O: S1 w, d, Y, }6 N4 B1 A3 IBingo~

waikong

我係學校個學生會單張見過4 ~' {9 n& D1 ?+ _/ `
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; Z5 K) u% ^, R3 {
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]