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Triangel

第一個答中有獎) s7 S# x3 _% q! P3 F7 m

5 {- Z0 K7 D" u9 T(x - a) = x - a
. B" n3 Z1 d6 C% F/ A  l, W(x - a) (x - b) = x^2 – ax – bx + ab
5 M7 h7 A! B, ?: D(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc% k+ L7 h/ u/ W+ s5 {
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* P) Q5 u1 r8 v9 a+ }$ A" J如此種推，
/ E' b0 s1 V9 o(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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) N/ a" W# r& J8 `1 s7 D' r) q0 a

Originally posted by Triangel at 2007-4-18 01:26 PM:# }9 p( e1 W# `) _, Q; G) |
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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/ w$ i* g* _' c9 H- B" G- W# f[ 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:" n' p: I) B$ \9 C7 p/ P" G" G2 Q
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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+ A: u7 [7 Q$ A4 g& O: `Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
, y0 e# ?" X7 S9 L8 G# P# N第一個答中有獎3 y! \2 s0 t% a

; E' x; i( U9 x4 h+ T; j(x - ...

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" ~/ b. [+ @! \(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:8 I+ l) K4 @. O( l$ {0 ^2 f( P% b
$ a3 P$ Z3 S- n  E# t8 `
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題, H+ U% R' b5 U& m+ `: A
似IQ題=.=
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" R: ]/ Y5 c8 q) _4 N[ 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:
  E* [. d. O* r3 v# o  b2 d4 j3 r
$ @; I/ u& S  n* Y
5 v9 U5 q3 o2 ^& r, |0 k9 T2 p(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+ @( b  t3 |" F. Q/ Z
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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  g6 D) y2 Z9 y; Y# K7 H# u: t1 o0 r這條問題，貼落吹水版，名副其實$ }# m( x9 X6 s# H' J- q
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]