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Triangel 發表於 2007-4-18 01:26 PM

| TriTri | A-Math 加分題 |

第一個答中有獎

[color=Blue](x - a) [/color] = x - a
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + abtI(N#h Jq4Z&VB"v |
[color=Blue](x - a) (x - b) (x – c) [/color] = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
如此種推，yte"^-`
[color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???TvNR;da#@

[[i] Last edited by Triangel on 2007-4-18 at 01:52 PM [/i]]

大大發表於 2007-4-18 01:41 PM

點解你個問題好似有d問題
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
:L%cI(Za#Q"_
[/quote]
]-y\+R8F? gfR{
[[i] Last edited by 大大 on 2007-4-18 at 01:54 PM [/i]]

Triangel 發表於 2007-4-18 01:54 PM

[quote]Originally posted by [i]大大[/i] at 2007-4-18 01:41 PM:
咁難既=.="
\5iew/]0oe yZ*L$K
[[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
z8z `P4O.n%M
Thanks! 更正啦

littlenic 發表於 2007-4-18 01:54 PM

[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:d?7Y3mf E~^3l
第一個答中有獎`,d;L h.v5D4iU
[%SW]v1W:v
[color=Blue](x - ... [/quote]
s5o_q Z
(x-x)= 0 ，所以答案係0，is it?

大大發表於 2007-4-18 01:56 PM

[quote]Originally posted by [i]littlenic[/i] at 2007-4-18 01:54 PM:

(x-x)= 0 ，所以答案係0，is it? [/quote]IiI'W*[
:good:H~8S TL*yn
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唔似a.math題s9\,[9k@p
似IQ題=.=6tH2js,U1B&Vv
Gq7uYO3A"}|:Hy5i
[[i] Last edited by 大大 on 2007-4-18 at 01:57 PM [/i]]

Triangel 發表於 2007-4-18 01:57 PM

[quote]Originally posted by [i]littlenic[/i] at 2007-4-18 01:54 PM:
%q%t}5VL;M
GEQ%i}Pp
(x-x)= 0 ，所以答案係0，is it? [/quote] BDz M!o\E/w0S

Bingo~

waikong 發表於 2007-4-18 03:53 PM

我係學校個學生會單張見過:haha::haha:l5?1LP4GSx
諗左一陣先諗到

playbr2 發表於 2007-4-18 04:00 PM

我吾識答啊[IMG]http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif[/IMG]~~~ [IMG]http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif[/IMG]

karen0123 發表於 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0........./c kvu~m] SX

這條問題，貼落吹水版，名副其實:naughty::naughty:
gNZ"}7^ ]
[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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