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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
+QU0tW ` Z/a1C2M)A
[color=Blue](x - a) [/color] = x - a
%AnxJ[ V^ [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
+kqeB0C{I!M Pr [color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
ys!L F_[d [color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd+? SR;AD'Dt#v7S
如此種推，
}-\4D`9r!Z [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???7l3DVo#L A@C

tFk J#N;q1P.L\y&S [[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mW,a]"@1f \
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:9W6S0@L.w(E n7^&w
(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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[/quote])M1L*Y)n]RK\H
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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:{)n&rO4B,S4s
咁難既=.="
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[[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
%xY4`8}:UQhH ur)Gb?5QLV`+@
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:
$b0d%pp(F 第一個答中有獎
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[color=Blue](x - ... [/quote]
,uh7l|8DsnGj5R j qlsv%xS:~
(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:.n(g!K[k6~TP'Rj
!iME8A9]4T
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(x-x)= 0 ，所以答案係0，is it? [/quote]
!wa8|*yXc.iDH :good:
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0T,cc|3o,X,j3fw 唔似a.math題+Qq"MM%}F:T"j
似IQ題=.=
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gT(LU"y+_ ek,ZUKl [[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::|y1BE4PgF
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(x-x)= 0 ，所以答案係0，is it? [/quote]
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p%]Bj:X#c}Vp 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:
&X1n.xj(SW@ 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.........
1ylb#n*_,a #|$[+h)Mz0_9Uz0q#N8T1e
這條問題，貼落吹水版，名副其實:naughty::naughty:vH$XX5H;e

~5{Q F-h,g%D%B#`:S [[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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