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Triangel

第一個答中有獎, B1 j. @0 m- R$ Y1 L
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(x - a) = x - a0 ?, X, a3 a& H' `: |
(x - a) (x - b) = x^2 – ax – bx + ab* L- Y8 j$ O9 a1 e7 s+ Q8 S
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 x6 h+ [) P, H9 z) A+ G3 g! b
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; P3 J( O& w. y  e& U如此種推，4 G0 F9 y3 i1 B$ I
(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6 |, a2 s7 R. f3 ~1 S& g

Originally posted by Triangel at 2007-4-18 01:26 PM:
7 s5 P2 w7 b9 s2 S5 _( [+ Z& _- A(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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1 G6 z" O. N9 ~# E[ 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:
( H! u9 _/ N  ?( [- y8 F咁難既=.="5 b* X4 D' y8 O0 j' h

# |7 B. ^7 t( m  P: m/ E' ~[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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0 ?, v: s- x# {. @8 Z& z! y( `Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:2 A" w& ^% Y9 l0 p# l
第一個答中有獎0 d( D- \- _* p* @0 @6 y- a  O$ C
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(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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- Q  `; w. S$ B5 x/ d( L1 j(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題3 Z" d0 ^" S' M
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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(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* e) s+ H5 n" \% ?
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.........8 M; z$ ?6 v' \( b& R& a! P
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這條問題，貼落吹水版，名副其實4 P% V- H3 [0 |' c7 O* t9 s
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]