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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
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XA'T3_P^3x4F [color=Blue](x - a) [/color] = x - a
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K]%U.q2B [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
8A_v"u%~+Z1niV [color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abcb2s&sizK9X[J'y
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2Zd PD(U(J [
如此種推，
0bF8_H~)Vg [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???-W&?4EPE/q$k|JO
~ilq\C-E
[[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0k+z%_.F"ta cv
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:v6d e E#J@)Jl j.j
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abcm&}(VE0Sd]p

3^g+@I%zscT:D [/quote]7@/V @f U^?.K t
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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:*bD'[9t#b
咁難既=.="B#qEh5e:@? J `/G;JP

Sa.hX+M [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
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tE1J;@Ung(A i 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:
h,R4H$g*Q2O8Cg 第一個答中有獎UY}(UZ9V

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b [color=Blue](x - ... [/quote]_}#P*a)w#}^

2mvXh n(M8ea (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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唔似a.math題F%G)K e
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似IQ題=.=,kr^?fH

7FZ"a yP.q1Cr [[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:FYT%yY
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@!B%w!O]1\&s
(x-x)= 0 ，所以答案係0，is it? [/quote]:da6QQlV
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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:_^zl,m%EUq r
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.........2W ue_~\ ]M
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這條問題，貼落吹水版，名副其實:naughty::naughty:QfD.x,p i{
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[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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