| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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* U7 M& Z0 _, M(x - a) = x - a
7 K& }5 A  u7 _(x - a) (x - b) = x^2 – ax – bx + ab8 v+ `: }: s' q# ?. L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
4 ~; e8 k" f/ q" j7 y- F(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd3 j2 p: G# c) L6 `4 d3 d* m) ~
如此種推，
0 g. }/ }* G) t% ]3 h9 W; d7 T(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???! j) x8 P- n$ _( X2 O2 i) O

9 i3 C/ [" S6 E' V[ 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:( O3 g, g" E& i2 n+ _/ _) B( E
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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/ I  F6 N- e* ?2 N3 i[ 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:  a4 L' J6 I, E# A# g/ ^
咁難既=.="
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[ 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:6 Z# s/ }4 @* u
第一個答中有獎. o/ r+ l4 x7 u6 e+ w! P- P  L

6 @3 I1 i, p* \& [" u. O- \# S" K(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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# J2 t8 ^5 h6 C" b& W(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題8 ~, m' m$ D+ y5 y* ]  I
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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0 c; O2 z. r/ f! c% w(x-x)= 0 ，所以答案係0，is it?

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1 I1 a# J# v7 N1 aBingo~

waikong

我係學校個學生會單張見過7 G, _" H* t/ N" p/ u2 b* ^
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 {$ \' d4 b( c5 A6 [9 Y
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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 ]