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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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[color=Blue](x - a) [/color] = x - aDtc_,d:}!y
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab@.lC"g0bp
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abcJ!d4P"A#lQ
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
6U"A)GiNBX 如此種推，
xg({_F|)uR [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???p8Oou)DJ w1wjl
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[[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8\2kGHxe.E+tj
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[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
1MdpI2SI (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc#u B\k
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._EQ,D#}}D [/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:4JP;D1B$U h
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4I-^VUxK [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
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z&p/]5P*Q 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:9^$XL#a-N1^&hb
第一個答中有獎V3n5QF%~/j

T'g$b;]lW} p [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:
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$F&L}#v0J%Q\ e (x-x)= 0 ，所以答案係0，is it? [/quote]
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唔似a.math題
2v"OCg^$[&DOY 似IQ題=.=+}:Jv'a"Y9D ^C

8O@f&e4l [[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:BcT|(Wa1_,T?

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(x-x)= 0 ，所以答案係0，is it? [/quote][;A0i?MR$il


JMX:ug{ee[ 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:
t4n7S7Lzs 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.........
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m/bQaf1K2e!h7f5A 這條問題，貼落吹水版，名副其實:naughty::naughty:Lq!VzRz

v#H-wM@D [[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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