| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
4 L6 C' x8 P* d+ @3 e2 P(x - a) (x - b) = x^2 – ax – bx + ab% H* D$ Z6 M8 ~
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
% n( ^+ y% d+ E0 p! F) S! ^2 v(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
5 c5 T4 `: k* W如此種推，; Q8 ~! C; Z7 q4 O" C6 X) s& q* |) y
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???. d& p+ T5 x) j1 ^) f7 e

. y9 s. ^- |3 ?[ 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:5 t' ]6 E8 U/ ?/ p, R/ `
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc2 m" Q+ @% T7 [. B2 {+ }0 v5 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:# ~, r4 s. O2 \
咁難既=.="8 r0 k. i! q) p* A! C: N) O
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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3 @+ r/ s6 C0 G6 u- c0 s. B2 x8 C. |Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
. w2 A& z1 l* |- h, v; P9 }. L+ t+ f( ~第一個答中有獎4 E0 E& l. w# [

* Y* u( e7 @- H# A, U& e- t(x - ...

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5 ~, f1 d, L& 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:; q( _. k+ v' l

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(x-x)= 0 ，所以答案係0，is it?

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3 ^4 ]8 x1 x1 k; y4 ?1 n5 t. T唔似a.math題: p0 }. ]8 I3 I
似IQ題=.=
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$ l& j0 s+ t" `+ l* `* n- ?) a[ 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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(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
2 z" X" d" @+ T8 y2 b0 M3 @. z0 @! l2 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.........5 A) I5 M  S6 I# v/ G& r

4 Y$ w# q! `( }; b這條問題，貼落吹水版，名副其實7 U; H) ~6 _# I$ {
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]