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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
fs8R6M#x:CE+Q%c3Z
0N?&FD
L [color=Blue](x - a) [/color] = x - a
|qOranE,K#~$E [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab,mP _~-E\
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
'aSOtr,p5T)m6x [color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd3sty6O&nFy*M
如此種推，
%I]b_ShT [color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???1hp)P%HyUr

/M7w t'F9V7O [[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P @o.dBp
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
nmba8EGarV (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
rZ3u!Y0K~Qn9q4y
y
5Ef9_.f*OPy [/quote]
l x(D:i6HX`{ zoh
q2}L+[T!i;Ky
[[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:~)w&@ R1Q&f*u
咁難既=.="
!t\-x"_|
C5vGhE5x#i [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]J3G}.AXD&K
^.W"y6e}v'iE
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:
,w/aw{q"e
}#]A6T 第一個答中有獎
P{]t,_ho%yy X'xGe*m
[color=Blue](x - ... [/quote]
@,^1Y$|,^ N L8|qA/u\)Mfv2N2g
(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:
7h6b@+xx(T _g:u 2Iqe@ mTz

u W*FrV(Q\ (x-x)= 0 ，所以答案係0，is it? [/quote]6\,b*V:_O"NhA#n[
:good:
h6[mdn6~ "`7bRD7@V
唔似a.math題;VcL-lM&l
似IQ題=.=6`D]2tQ ?u
/\'TSE\
[[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:
(?-dP N q
O;Q(}g1w
Ed7U4Qr9Kov (x-x)= 0 ，所以答案係0，is it? [/quote]'I*k"y1F?z
b+p*zs x
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:
%M1i5ZEJ 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.........'u~"YCx1ng*?#]
cB:VE.r D(sc
這條問題，貼落吹水版，名副其實:naughty::naughty:
/SW/fQs Sxl'PM
[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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