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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MJa*\2f*u:d k)]v8R
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[color=Blue](x - a) [/color] = x - a
VD a$W!Zm(fU [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab`7i'h&z Co/Ig
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
&WE[tYv'r/J [color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
^7}F;`*hRpW7w 如此種推，7j-s,n*Y3j V9x
[color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???DQ9hpg9o"bV
-Hqo WI,i1||
[[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$H8k~!C [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
(d5e n+M,})XX (x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
va`)N8t%b+BE r:m+M _ q!QL%J}6oFuI
[/quote]
(I2@ A&D'H-B.HIM3n $\x/nV a!`%j
[[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:3Vi Z3b8z
咁難既=.="
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Ge3uBVd&S"} [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote] _
dE~d`0V`ad2i

p{T0X rAs{ 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:
0v0Y,L3i(r7K2[0~ 第一個答中有獎
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[color=Blue](x - ... [/quote]
7[+U!`]&| ud`oq A9n? pb
(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: B{)n[U
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(x-x)= 0 ，所以答案係0，is it? [/quote]
(w6B0C+[#J sU :good:
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$B0A F:]1K O 唔似a.math題
@x$n#KX)H3o 似IQ題=.=p&z)O[/N6av4S

-lcW9p4p m [[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:q6cD OI8[s

Ll,d(M,CV
a U!s6cF#y6n (x-x)= 0 ，所以答案係0，is it? [/quote]W z/V{dm9~U

]j6Ix\ O8l*`R 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:
0Y(j U U0cSTy 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.........
hM}"WP

BlR0d;_3I2j w 這條問題，貼落吹水版，名副其實:naughty::naughty:!p-H.n0@c-ZV/s n

L(i0`X&O#`:o [[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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