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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+e~SY;p.dx0S

1\x3\7R)T;AwD+tm [color=Blue](x - a) [/color] = x - a1\A"Q/i$pc
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab hQCI'q+`(v#g:s
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
&?5@
O,N
||jX?^ [color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd T"G.V"c|4o2g
如此種推，
HU^s hr D[K [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
sp*K2Rxla`+G u(@6B"g ;J0D%j!B%BAW3p3v$H
[[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/LQN)J yE~
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:a`*p+uks/dv|
(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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-GxNr+fjXp y [/quote]
2[Q3]f#E%K Rs`b*kP
[[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:4WT7Z,mm\
咁難既=.="
};^W$QEu /?$HUB[v:r
[[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]
ig#{/|e4c)H+q*O
k2M:?u`{ IYg 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:
p~p"VK9W 第一個答中有獎#kYUZ*RsS5I2m&o
y:ze5Q \B(lcYr
[color=Blue](x - ... [/quote]
%E*nc6U3QUITin
#`Qo/Rt7q (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:8d\;~%}ZV
G+pAe3ZH

cej-A(kJk9RX (x-x)= 0 ，所以答案係0，is it? [/quote]9X#q%ln.m7FPWZ
:good:
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唔似a.math題)z4J"O^-i+M%K|
似IQ題=.=
cx L/js!`Y{@ 9pQ0@S"L {2?b oF
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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:N x6n7X6f bak"j
V!H
?dRgyy
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/Hp$iRNH S.j!S)O
(x-x)= 0 ，所以答案係0，is it? [/quote]
l^\'dQ5}\cm%iK
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K%{/XFm,n6V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:QyS [cE/r
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.........
v.s]])y-Z3Lt G0G)C+@+M
這條問題，貼落吹水版，名副其實:naughty::naughty:
3QWV.nV aHP&Pp
[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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