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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
KX(~0S9W+]
^O/J Ly2D2Z [color=Blue](x - a) [/color] = x - a
e"dZ'}G [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab5An*^5M.Uz'Rs"n2D@
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc/dg0V2v^;~Fo(\
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
5gxZ i1U^c 如此種推，
I5dEOl;e [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
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j-CX1h-Ae-n+K(Gv [[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
F:R#FI'Z9@aU,B0x$r [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
?RO5F3Cp,ZeDK (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc~@.qO)bOz

;t1sM*m9t\ @1~ [/quote]
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5I2?;_gn9I5o:W [[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:@G;I%M@)@
咁難既=.="Y+@xX Q:d|%nf

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cBV,cb [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]/J}#O
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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:4|b[o#aS3H
第一個答中有獎
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gf+h] WADk0z+k(aR [color=Blue](x - ... [/quote]
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2X@&W^H{s0c (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:.m;@2sK%J)~V

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Y"d'M&qHV (x-x)= 0 ，所以答案係0，is it? [/quote] YPN!J&\Wu
:good:
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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:vVdA9iDZG(VL]

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(x-x)= 0 ，所以答案係0，is it? [/quote]P3HJE%k5K1H}P
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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:
m|I
VM.J 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.........5ht1s f3@ S"B

6BE
@AN%S/R%U 這條問題，貼落吹水版，名副其實:naughty::naughty:
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[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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