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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
1@@EP!F x
(~"J/TT S&hei [color=Blue](x - a) [/color] = x - a_!iePDF0w
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
HM(Kd^{(D t [color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
@8Sg6{'B-Ty-f
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcdr)J4BWj$P\3f2P
如此種推，
|7_8Nz+g1G(f] [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
M(_5Ns9L FY+t%P`c5`7Uh`
[[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{*U/FKu@
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:6S*t;?{!BX3c&c4L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
*c{.G?:hN -? rD H VJ;V5y1}
[/quote]hw5J odx
7^o2su(n1Z$z7N
[[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:
7uCAH+DyN)_9D 咁難既=.="
z7cq(m+o3OU
i-p{ [6v w!JX O'W
[[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]:L c{
B2V
NHYq9D,l
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: F.Rrr9\/@
第一個答中有獎"ib/d'N&p"n u)zmq
$w1}9bI*I$Z\dbq
[color=Blue](x - ... [/quote]t|wY8]Jb%T

!tWO:P4t q)kRR (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:
6H&M,i~oF:j+u,n Y:o*ODZ"a"m
*BUiaC-^G
(x-x)= 0 ，所以答案係0，is it? [/quote]
}LS&Od :good:
PV~ q(|qj YUp/s}M
唔似a.math題3eW}C"b2D$s"w
似IQ題=.=
${f`n5~6Mg T_-Kb$dyB.L3m
[[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:M;Rj#]Z_'f

q1w4pn0{
%e4g uWG (x-x)= 0 ，所以答案係0，is it? [/quote]u'G&B.z,o9f@`:Gq
AiEi9s!R-bh
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:A0Xzko
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.........0?M5IVn
r

j c
DNo.f 這條問題，貼落吹水版，名副其實:naughty::naughty:
erdZ%S%`)r L/m"a5D8w~
[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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