| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
  A2 ?  r0 E# f8 R, C' M% u9 T8 Q
(x - a) = x - a# h* C: ?/ f1 q" L+ B
(x - a) (x - b) = x^2 – ax – bx + ab
; z- o7 Q7 l  |% n/ e5 L, ?6 U7 k(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
6 b8 s  [2 R" r$ R0 e(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* V# R! B  p0 [9 |; P如此種推，
2 M! g  v, M2 q) B(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
; U3 K3 z# ]) W' F9 o5 y  l4 o4 q# ?9 Z: X7 G' P# F# z
[ 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, K* V: R% ^- Z( v, O

Originally posted by Triangel at 2007-4-18 01:26 PM:6 F# [- P4 A0 S- A
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc7 T% B* N* h: B( O6 _( d

* k+ |, h; C% e; t3 f7 S

8 s- ]- h( q! \, d/ v3 r
; s1 c3 O) ?! m4 {! o[ 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:. \  T' a0 I5 I' Y7 f
咁難既=.="7 ?  r8 {9 f% J! D. k4 E- F% N. ^

9 M1 ~  n! x+ F# a5 t8 b[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

9 h2 g  Z; f" h4 r5 I& C$ ?- ?5 M2 z* r' M. ?; }: v
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
- B0 c3 z" t+ g第一個答中有獎
# \1 M7 o, F8 E% Q7 u6 O, k# h- L( E+ ~! X6 g9 s* V, h1 A
(x - ...

' u8 Z4 h% }. N5 r; W9 ~( a  ^# w% m+ j, U- ?& |& K
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
/ Y( M( i7 h# L- O# T. _2 n* V6 ?) V% u  B2 Q
/ e4 o9 W  G; F3 J  }# m  S+ h
(x-x)= 0 ，所以答案係0，is it?

' A. f+ i5 o2 C
4 K5 b* \9 N( F# |& H0 C2 o+ g2 r

2 T/ {1 d* U' C! Z. ^唔似a.math題
% ?- K7 a8 x3 F" h似IQ題=.=
0 R! E, k/ \) J! n
7 H9 g% r. u) A$ `7 F) U* D+ c[ 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:% v, P, U6 x( Y5 {
7 F4 {/ T; [4 L- R5 W

/ u# h$ |2 X# q1 K- z9 R(x-x)= 0 ，所以答案係0，is it?

. e: J: h$ F( k7 h& V$ B

* z$ S8 k4 t* i% h; [Bingo~

waikong

我係學校個學生會單張見過/ E) U. g$ i' d9 S6 q' J
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.........6 }; O1 _# c5 h4 j! t3 U

6 ^2 J* z& G$ E$ u( k這條問題，貼落吹水版，名副其實
/ `# t. ]0 y( C0 i& s: R# T, ^) Z6 K# n& E; p
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]