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Triangel

第一個答中有獎" b  E: }6 {' O" A

; B8 v, u- s6 d9 A! [. J(x - a) = x - a
4 q; b! q, a+ y; Q8 `' j  y(x - a) (x - b) = x^2 – ax – bx + ab
3 K* @) Z0 ?% y' |! t6 E( b(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. ~$ [$ q- \, I) {, A(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd* {- _9 j5 \7 `) W5 _* U1 c
如此種推，' @/ O/ ~7 C$ W3 ~" `# e/ s! u: U
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 U+ O6 S. f2 _7 {

& D8 M8 z2 ~( t[ 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* i6 v. C- c# ^+ h$ }, y

Originally posted by Triangel at 2007-4-18 01:26 PM:) z" a. w# n/ A: {) z7 ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:- p. O9 H5 t$ g1 G7 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:" T' a" ?% {. L' ?$ v- W0 O
第一個答中有獎
6 p! X* n  c/ p" x- k/ r% \0 V2 [2 B3 M/ C$ I
(x - ...

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0 J: [) e' \$ n% k% [0 n7 {(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:. |. @! h% z+ s7 _# d9 [0 F

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(x-x)= 0 ，所以答案係0，is it?

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5 \' D3 y7 c- X1 p) X唔似a.math題
- `/ F: @* |& b" ~! X1 J似IQ題=.=* ^3 E, R5 x% F! [: ^* r8 l

6 B0 E8 ?, I0 q3 S3 m" Q, p, T[ 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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* V" p* c3 f) p: hBingo~

waikong

我係學校個學生會單張見過" h( `0 m: `( |
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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這條問題，貼落吹水版，名副其實
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1 z) i! P& V/ {  t8 z% {, b; i[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]