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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.ly;@V5Kz~MWJ f
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[color=Blue](x - a) [/color] = x - apZ#z%|1s:p$G sX6f7f
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
4o*Qlt'p[ [color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc:n1HmA+@t!u$XW
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd,Zk)l)X;w5T Q,s5P
如此種推，
,y ht#Tx Z~ [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
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g'W$Kg"WR#\] [[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
z d Q4Q_)gD&@Ig [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
%PD5YivO6MT (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc!tPb#y4N#z[w;LA
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[/quote]
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| [[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:;k8O-{rf+owm
咁難既=.="
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[f SBm4t Rpf [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]&o*J)J(q*h9P p4u

B]D`iWRq*L 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:
k+?DUq(K$K5z 第一個答中有獎8w&LQ6F#^/y
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[color=Blue](x - ... [/quote]Ii$`V,cNK
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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:unP8l6X)r a&t m7?
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(x-x)= 0 ，所以答案係0，is it? [/quote]X
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唔似a.math題6_N'`"`&p[)k*W2S$?
似IQ題=.=a3K O#s$e
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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:S&ot:Ab,X
)^mSfI6u#k

2bP:x3r3L1y+R-_fic (x-x)= 0 ，所以答案係0，is it? [/quote]
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[3J7O^ | w,a^Zd 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:
]A2c0CG,G 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.........RTU3}S(|

8s9T^1[h/QC 這條問題，貼落吹水版，名副其實:naughty::naughty:
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Y-Bc \f{-xl~ [[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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