| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
; f5 \& e. m$ H! u+ i- H/ [" o
6 g* D3 p; |9 r(x - a) = x - a
; t5 w. L  C% E) z( D( F(x - a) (x - b) = x^2 – ax – bx + ab
. j2 L/ J7 J7 V. B! z# K" ?  j, E(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc. R- _) N6 o5 P
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd: k6 J' q2 r' Y' J: A* E
如此種推，
; r/ ^" ^0 m" a* p(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???% d: c' O, d4 w5 d/ C* w
  W/ ?3 C7 E( x
[ 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$ s% v- |4 n, C6 {( A2 m8 q# f

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ H( u: \+ B0 z- @  F- {  W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
5 h- U2 N! s* N7 h6 Z* b& e
" k+ _( A+ Y+ p" }, r# c. p6 w

( q. E3 J$ O+ R3 I! s/ [2 Q: o- W- o" u+ @# G
[ 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:
/ j1 A& w1 a7 j! C- _+ F咁難既=.="
3 K8 Z" y7 ^2 n' H- k3 K; @# t. _" k$ _: t6 Z
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

7 I2 g  R- J4 s, ^$ ?
6 N- n, X0 k3 }( K8 N# i( i
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:7 L7 [" |. ~$ N' S8 @: {9 G
第一個答中有獎
* Z3 V# S2 o. W$ f- ~: F, Y3 u+ _
& b# d2 D. R' ^8 n8 I- r(x - ...

% P/ r! q  Y) G: P8 M

% E1 l. g1 A* j: C(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:, ?" V8 w9 K$ }7 _6 |8 U
- N2 B2 ]( Q: _

1 m9 \! [' v) n% [# P(x-x)= 0 ，所以答案係0，is it?

" |- ?6 d% m2 M

6 P$ i8 d" @) L1 F: ]% C: Z4 T4 S- T4 ?# g7 b' P. p( m
唔似a.math題0 P8 d8 e0 [) G/ G) c$ S* E! r6 m
似IQ題=.=
2 P6 A7 Q  S5 u. E3 F- o+ M  e" q/ U% W# D# h: [" l
[ 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:) S/ h4 j$ Q- h- T$ a# d
/ B8 J; `( z7 s7 M2 L* V6 I, \" X
5 M. e" Q/ P2 {
(x-x)= 0 ，所以答案係0，is it?

5 n% w: J$ c& @% s; Z: Y4 ~
+ n! o5 D1 \& t8 h
Bingo~

waikong

我係學校個學生會單張見過
5 G+ n) Q, K3 K0 F% V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.........0 C$ H) W9 G. v* T

9 y8 U5 T* Y, i/ l這條問題，貼落吹水版，名副其實0 [! J) d5 c9 R; {" o; W' B; Q

" p- }. F/ ?+ U[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]