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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5i'D |!B
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[color=Blue](x - a) [/color] = x - a"@@;y[aM`L
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab#Y4|O3P-J|l7}
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc-~i0W;m5Pkl0zr8X
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7co3Q_}k*[,rw
如此種推，
d8q m+AtC6V [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
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(Mm"A;SE(Jtv{fy [[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nc#oE}4exRaZ]
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
{e?l'L3Pf _ (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abcK\ W B]R F0p

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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:,sX5a?kD#zF
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[[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
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Cg7s1n 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:2nQZ&U#R)dB~
第一個答中有獎\rVT_p
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[color=Blue](x - ... [/quote]
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I3S&jG;P (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:Hgp/A.] mf(W-_z
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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
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(E!d'@{gC"P jQ [[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:a)rSlpW

xsrd5[*yp g:\.e S9F2s0H;\D`
(x-x)= 0 ，所以答案係0，is it? [/quote]s?3MxS

P.I2rb#aLQ G 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:
f3|5J*BeS"^B!X 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.........#@r {@WzG

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E4A/f`_ 這條問題，貼落吹水版，名副其實:naughty::naughty:wF#] _Xd6HI y

8lM1R5h k_FR'c4wy [[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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