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Triangel

第一個答中有獎) u8 x+ P! s& n- d- o

4 ]# k3 K) z( [. r(x - a) = x - a6 Q9 R2 O/ z4 E5 s$ e$ U
(x - a) (x - b) = x^2 – ax – bx + ab# T# k( {) d# O- v- L+ }
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
& ]6 k% N3 q, o6 {6 N* m(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
7 N+ Z& J! d" q& C3 F如此種推，
0 M! T+ h$ c, N1 Y4 f3 j(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???; T% q! j3 I3 b$ d3 }# x

  N- e3 o% f1 ?$ e* |, H# D& J  l! k[ 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1 q; Z/ V- j) f% M! ]2 a

Originally posted by Triangel at 2007-4-18 01:26 PM:
6 X) R- c9 @. v. j% a(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc  ~, ~3 j3 P0 a
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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:
7 p9 s/ z4 t0 a3 F2 a咁難既=.="3 n+ B4 _' M& `/ t
1 S! E$ G  f3 s! h. g
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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  b, a. _3 y- K! x/ h6 l* x  ^- B$ h
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:0 X' v+ q# E/ Z
第一個答中有獎6 t( l  l; E7 W# o9 d7 v# P

' e+ N0 S3 U8 z% `3 r( N+ u/ x(x - ...

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* g3 c& Z( H  h4 ~2 v(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
; k# s' m" I( s" t  z1 b  ^$ S  u0 F/ l: h- j

" M5 A; P9 X$ C* P: v: A% l( b(x-x)= 0 ，所以答案係0，is it?

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( ?! ]1 e: T, |2 g" j, Y: b. P; y# o" l6 {: c. f$ N5 W$ M' P0 h9 _" {' c' K
唔似a.math題0 m: p3 \0 }' T* o' `/ Q
似IQ題=.=7 T; i4 `/ n) r+ _9 X
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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:
' w& ~' I9 N- J9 S/ E8 v* M5 O- v
$ Q* J, `6 l1 _1 M% N: T/ d7 h& Y
' r. L( g3 L* d$ F# G) }4 P8 M(x-x)= 0 ，所以答案係0，is it?

3 i  c2 t& G1 p& B5 T+ Y0 }6 m% z1 g9 Q* K$ H8 b2 d9 f, z2 m
Bingo~

waikong

我係學校個學生會單張見過
. y" w# d) G. d8 \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.........7 Q" g% V% o7 t9 c( v: G
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這條問題，貼落吹水版，名副其實: C0 S: v1 e8 ?" J, ^1 L- x/ D' K

2 e3 {' e4 |3 ?  F[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]