| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎/ y1 C8 S" P+ f5 N& E# m

$ U8 o  C" N) U0 L(x - a) = x - a
8 k8 `  m" A" D- P6 `(x - a) (x - b) = x^2 – ax – bx + ab, h8 a( K: ~6 j& L$ F+ V' a
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc9 Y# d  F1 f  I# C4 O( u
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd4 ]5 P7 P8 `7 Z
如此種推，
& e/ S, G( S, M& c5 p8 b(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, q8 N; U; ~+ e

Originally posted by Triangel at 2007-4-18 01:26 PM:
  J, D' s, @* G% n/ C" h  r3 T(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 k. _* L* [9 n2 ~7 n1 q6 F

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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:! ?/ m. e  @! y( K3 J
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:) @# q8 P8 j* W
第一個答中有獎0 G# |+ T; T4 u' I8 k

; r5 `- g0 G/ ]4 s+ J- ]8 M4 y0 i(x - ...

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$ }- g: G$ _, \7 X(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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3 {6 k; {0 l% [
(x-x)= 0 ，所以答案係0，is it?

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, P" z: @- t: [- K: k唔似a.math題0 e% N0 K; T3 |$ H3 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:
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/ [  d% a. `4 \+ S  D" _9 c(x-x)= 0 ，所以答案係0，is it?

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) {# N+ L& p! M4 P! pBingo~

waikong

我係學校個學生會單張見過
; l. ^8 N- L5 J  z1 H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.........' D2 @" L- G! L. _$ j- u7 Y
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這條問題，貼落吹水版，名副其實. \! {+ g* Q, P* H0 h; E
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]