| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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" N* `/ X) o" E/ `(x - a) = x - a
6 l4 ?! _4 c2 ]" z(x - a) (x - b) = x^2 – ax – bx + ab
& w5 F7 i( `$ L- E) ~" r% ?& [(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
3 B' A' ~, N, L' }/ `- _( }(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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[ 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/ E7 y0 L: W6 O& V$ h$ O

Originally posted by Triangel at 2007-4-18 01:26 PM:
# N# Z$ z3 O0 S5 ^; e6 M/ O" P* E(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc. o/ E) G' ^0 ~/ H7 T9 K
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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:" a4 W; R+ ^2 h5 p, c/ b
咁難既=.="
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[ 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:: X# A+ b; g: [" L% _
第一個答中有獎
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0 }: m4 N3 ^# v(x - ...

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1 j7 e; M/ [; X: c, j(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:4 A5 ]- a* \8 }) s8 x* i
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(x-x)= 0 ，所以答案係0，is it?

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+ S! C  K) a- n% D$ B唔似a.math題; X- L# m$ w$ z, w, \1 M
似IQ題=.=0 F4 g, X" @% N) h( [
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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:
$ U- h2 t6 U9 s# w0 @9 x& g
  A4 o& D1 _( T/ \7 p$ i1 ?/ W8 r' L% a! r3 W0 Z1 H. p
(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3 ]* S. A, `' S9 @! _: \
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.........9 K& \2 c- w: x, h5 X# c. I' k

. D) E+ N% ^5 {+ M/ E8 `) {% o' F9 T- e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 ]