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標題: | TriTri | A-Math 加分題 | [打印本頁]

作者: Triangel 時間: 2007-4-18 01:26 PM 標題: | TriTri | A-Math 加分題 |

第一個答中有獎
+ ^, }2 X* j2 {& M* A) h0 \
(x - a) = x - a
(x - a) (x - b) = x^2 – ax – bx + ab; U6 E- |1 X* _7 x4 Z' K) q1 K
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd* g% s( i6 \9 a0 E0 ~& Y, [
如此種推，
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???* y$ |; Y! J, j2 D5 B: G8 {. Q
3 V* t# |! A; j2 g; C
[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

作者: 大大 時間: 2007-4-18 01:41 PM

點解你個問題好似有d問題

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ h Z1 u% d% f/ n+ S(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc+ b* t y3 ?) E' M
$ F7 Z9 \) O& {" }5 }" P, Q* X

[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

作者: Triangel 時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:% a6 K2 r1 k) A. m: i! d/ I5 \
咁難既=.="9 J' C& k/ k) O
- p7 L6 g/ q- C v
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

5 x: j/ H1 ?# P
Thanks! 更正啦

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:
5 H7 O4 s v" v0 |7 L# ^$ }9 M; P第一個答中有獎5 w& L, Z5 e1 ^6 E2 B( I
8 S- s0 z/ i- L& a3 J; M% `- N: n
(x - ...

% M0 \4 h; Z: M) [8 z( q' }

(x-x)= 0 ，所以答案係0，is it?

作者: 大大 時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:
c1 I0 u0 i& f' @. ]; F9 X% l- a: t0 C

* D7 r$ r6 h5 A2 W/ \0 m9 X(x-x)= 0 ，所以答案係0，is it?

! y- g4 ?3 G& A4 ]$ s

唔似a.math題; d5 S$ j' l9 I, T1 i( K
似IQ題=.=
" v9 J. z+ E2 _
[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

作者: Triangel 時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:
6 p D) U9 } n+ {6 }- Q- r! v4 O2 s
# t5 q0 v: C, c: b" j: r% G
(x-x)= 0 ，所以答案係0，is it?

Bingo~

作者: waikong 時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過

諗左一陣先諗到

作者: playbr2 時間: 2007-4-18 04:00 PM

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

作者: karen0123 時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0.........

這條問題，貼落吹水版，名副其實

: F4 Q9 @# O& h7 `/ }
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]

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