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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R*[X+V_/yZ7yw
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[color=Blue](x - a) [/color] = x - a8XD]+l ]*G?5I#w,n
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
5Py!K3L~cJ [color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
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n `E R-I/m [color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
uE8VrxceL 如此種推，
UCDT0^m$E"_+k [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???} w sx
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(Gf5m&j wvA
[[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
"vYc QzV]7y [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
gf/n){V (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
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R} tUC!Q [/quote]
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KPa%tZOGz [[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:6Ne3Lp2x+H
咁難既=.="v])|W4fK

f5gm+UA%| [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote] `L]n/^%A1V7Wn3h

W4qtx'h#HKY1E 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:"n4T'\p#xi R0~*A
第一個答中有獎apchL*R\,I"\
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[color=Blue](x - ... [/quote]
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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:0z kbsj q
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(x-x)= 0 ，所以答案係0，is it? [/quote]!jHH k*lx`
:good:
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唔似a.math題
BW3Us,@cELV 似IQ題=.=d[6Qx,Q*w7p
$m@6Q1Qt*RkG5?}6^ S:h
[[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:
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G)`)LRN0ZXQ (x-x)= 0 ，所以答案係0，is it? [/quote]pk8V @"B0l;TFb

k1tf OPIi{7f 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:
.|sf%Z(fg.|N"h 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........."zl YvH"Q_iw:^
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這條問題，貼落吹水版，名副其實:naughty::naughty:
;Z0D0NQ'?#s I 1{M.Me;R
[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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