| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a( W) r1 @$ b1 N* W& F2 V! s
(x - a) (x - b) = x^2 – ax – bx + ab
: }- ]8 n  h& \# E" v* ^(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
/ }4 [" R" @" s) z) z8 S( Z(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd$ P0 t" ?+ b. j6 {* N' X
如此種推，
: a, n+ W1 C6 R* M, G+ I(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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& `% e1 `1 q/ Z3 g[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題
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Originally posted by Triangel at 2007-4-18 01:26 PM:; t% K4 ~% y8 I" L& I! m% n& W0 u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:5 m" p0 [* {# p6 h$ @: r
咁難既=.="
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9 q0 Z0 T9 T  V[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
" o0 _; i/ l& s8 b* v+ L第一個答中有獎1 y/ \. x4 p& R
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(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:7 s2 |: d, g/ y+ F+ F# q/ G
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
* E( V! s) B, G, G0 y! }4 N似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:) w6 ^8 o. j/ n
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(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過+ r8 i9 T& F8 @+ h
諗左一陣先諗到

playbr2

我吾識答啊http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif~~~ http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif

karen0123

(哭)~~~~~其實我都知係0.........2 @8 t1 \) w; \! k+ K  S  b( a+ \

' Z3 y  \' |  v, R4 u這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]