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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
gY"?:IrX8E 5r3]B XZ
[color=Blue](x - a) [/color] = x - a
)`*@tlNe{ [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
9~:[-\"\$b:z&w [color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abcnH,Nt$G2@7J
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcdl d*x|/l'Dm
W;Rw
如此種推，
yr!f;x2E5}(b0B bi/k [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???Yc rgd6N m:r
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[[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.gp E[#t)CW3\j
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:;v%w^-PWh2u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abci'xIG-dDU(j[

"J ~*P c8x.|9waI [/quote]8PE%T'[&jy

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w`vG.ft [[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:?I E:j6S
咁難既=.="
q"oR J|'_~
9| Imh1S;P [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
(R^V V,a ;p]M*{6Q;ob
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:
T,^ {E v~'I)o b\ 第一個答中有獎
j"E%NL/@e(kQ:YC
@GCJ%p/Zii(M [color=Blue](x - ... [/quote]"VB+{*\g

1c.R"X1?$i5\{h (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:
6wY)e;TC_"aI!Re
5A@:iXeV)X#v
6kazsT%w (x-x)= 0 ，所以答案係0，is it? [/quote]C
Z)F5H5sU"R
:good:
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5A7B,{k5\*a-z 唔似a.math題c'B5k UE'W&s"J
似IQ題=.=
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[[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:
*dI,A$c-tl H FP&mHq5K
1Mj,@]&_&]
(x-x)= 0 ，所以答案係0，is it? [/quote]|"uV5P'J(| k

$M/P6\-l H l 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:
/e5m.@|Q^ 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.........)R2PdwH9V]"h
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這條問題，貼落吹水版，名副其實:naughty::naughty:o+g]2z4c/|2H U

(zM%FMR'wDvs [[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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