| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
* z" U) A- Q7 y/ r- |
5 F5 Q& E+ r5 V/ A0 w) E(x - a) = x - a3 }" h% W0 m% S4 j8 q4 l# k
(x - a) (x - b) = x^2 – ax – bx + ab
) l* e  v" q- x3 U3 Y* R# p. q" V+ n(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
/ x  E7 m+ ]: |" y(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd6 u" F$ p" P- S
如此種推，
: k$ S& {' w8 `: I/ @(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
; K3 \6 l) `+ f1 R. H! E
; @# k# M% ^0 ?[ 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1 N8 M6 _( C& e# v8 D* H2 U( S

Originally posted by Triangel at 2007-4-18 01:26 PM:1 M2 @/ w9 e: L" ?, W8 m- H
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc- {. d9 b+ Y& T7 r6 \
3 P$ J' Q+ |- O/ Z& G9 b/ y( @

/ Q3 o) E2 u: E' {
7 r* g! M& w! T; r( O0 u[ 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:
, W5 \- e# z, a) k( q7 M咁難既=.="! n" l0 i' k  L, \0 Z, k- j6 @! m
- f1 j) ?! m4 h* D
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

! `* i1 ?. Z* t2 `; V# r

' T; ^6 m& G$ M% r) J  xThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:, ]+ K7 w  l9 _( r) F$ }1 D
第一個答中有獎
7 a, w& M2 r/ i
# O, w  ?% ]! X2 b' x  w) \(x - ...

1 `" h2 s; b5 e7 m
' x: u# A& F& i9 g% d1 W3 [
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
# i9 ]: B4 s0 d6 a9 r
1 J& S$ H" D% Y5 r- v: [
5 j, e0 @' L" o7 G; E3 D(x-x)= 0 ，所以答案係0，is it?

0 Y0 q) a, R* L8 j' N! I

2 o7 q6 s* ?: j# N) B9 b1 F9 S! ^) \9 B. {# }0 L
唔似a.math題
1 X0 [2 [( M2 `$ u, `  A- u似IQ題=.=
+ D  n% ?( E5 \3 o; F
# w' t. M  b9 R1 C9 \/ a- [$ n8 E[ 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:: F2 ^  @+ ~/ x8 X$ ?

. j3 q. q; l0 b8 [% H' B: q' r1 n* a( c! r
(x-x)= 0 ，所以答案係0，is it?

" c& T& j/ d( f# s' u$ U, ?7 ]6 x; y) t: [
Bingo~

waikong

我係學校個學生會單張見過
7 V# g; F3 Y1 E* g- C, M5 q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.........3 _7 M6 S6 d/ g5 ^' B! D9 d

4 [' J: R; h( B. b) y這條問題，貼落吹水版，名副其實
! C! @5 E' M) x4 @
& }+ p2 A5 t1 q[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]