| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎9 V4 q$ s, w+ l4 j9 I
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(x - a) = x - a
2 t4 S9 D3 p6 |(x - a) (x - b) = x^2 – ax – bx + ab
0 K8 J- T; ?0 Y4 \(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
+ C  G' W$ b: x% `(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
2 _* h& V! g& r6 [- W* @7 i& D4 X) H如此種推，9 o" Y0 A9 l% F$ }. A5 i" A
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ S- m" Y' q4 @2 t- y' P
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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- u3 B7 Q- p5 u4 j+ G

Originally posted by Triangel at 2007-4-18 01:26 PM:2 B  I' E! N0 L. R. u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc* f3 {$ h1 q7 S- P

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. [) k! {* u4 {0 H[ 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:( l) g/ n3 b' R' Q) N
咁難既=.="2 ?" ?# J# g: }, E, n- i* _& i

* H( G0 M2 ]: G8 K8 r[ 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:
% t; a1 X1 z1 g* j第一個答中有獎% i4 i* P9 k5 T! O

2 W3 ^! e* |3 O2 G5 @" Q! f( g2 A(x - ...

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7 r! `  @2 }: w* r( U(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:7 \! v- l7 m5 b. s' H4 A6 }  j( ?
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
5 p0 ~  {' b/ z3 h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:% O( c8 t4 k1 V  F& Q* g; l
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5 O$ E8 P( R: v. M1 M# H
(x-x)= 0 ，所以答案係0，is it?

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7 g7 E  c# q  K6 N4 iBingo~

waikong

我係學校個學生會單張見過, g3 F' U* C9 K( A
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.........( K  T/ q$ k8 L# I  J  i) _

: |7 Z4 h, n/ Q* j+ T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 ]