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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 - a
#Ltaq:i|v [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
{r#b;{5~9~"d8k z!Q8@ [color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7w@qA-Py
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd1O/[/k/dh"stlDw
如此種推， e{Lt!q)W
[color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
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B}S|?$u$NU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
#Y5gX&fv4h [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
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A (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc-b1m#?!B7w W

!W'}IE2p&H6H [/quote]
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]!t-t)K [ [[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:
|'OZON:oZ 咁難既=.="i mb9m)z,C)A:K+j:Vl2a

u0yaZ'_DHt [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
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`0X*zD,qF 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:
-_-`2U_RH @sQN0X 第一個答中有獎(T)C![n2g"FFo,C3q

&m-f3]'E#DH'O` [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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C!^j&zmJ` (x-x)= 0 ，所以答案係0，is it? [/quote]
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唔似a.math題g~v'b$~.U
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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:
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(x-x)= 0 ，所以答案係0，is it? [/quote]
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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:;Gc)}b#Ys%qx$^
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.........b g)El%z R
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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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