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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j1A/L%@ rZ/d#x E-Y"I

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[color=Blue](x - a) [/color] = x - aH.T&C;h$W'ZV%{
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + abo+W X'G\@ _8{
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
W)l7g?t [color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
.K'n#gf%s 如此種推，(|(j-leQw'W"[2^
[color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???([f)G
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5~$|s]+H$D [[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
"lob'b@)d|Yt1s [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:'l;oN?#?J
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
+W0?*e j*X^.V -P.g,D7B Amo^ X|
[/quote]*G%t \'Lw+d%X,E-D

.Pq+|;I;ZZY*k%A [[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:)]r,?;X7DJ!W4[A/gt
咁難既=.="
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4??y"h-~i#WD$E [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]nL @,W_5n X

,A$}/eD6NT 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:
,h8\*]m |a 第一個答中有獎
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[color=Blue](x - ... [/quote] `#x8D y%`;W
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(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:
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(x-x)= 0 ，所以答案係0，is it? [/quote]
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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:6OIc!e(c
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*UFF9\&FPh3EU r (x-x)= 0 ，所以答案係0，is it? [/quote]3Y5F(SbN3C
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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:%iB's N5_RxvA;_
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.........W5gA5Lqh
:plr\
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這條問題，貼落吹水版，名副其實:naughty::naughty:S$@0k&W \%]z[6@-P
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[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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