| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎: f: G1 `$ Q; L

8 W9 y7 R8 }: i* M. }( y(x - a) = x - a* w! q$ |: {. i
(x - a) (x - b) = x^2 – ax – bx + ab9 f$ \9 L( J& q# j8 P' R0 g: x/ F
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
6 D4 Q) B/ |9 h/ ?4 r8 o(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd  y( _9 O- _* g( x4 H: ~, v
如此種推，
. e7 u4 h1 P( C(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???" a2 [+ g1 ?1 |+ r0 c

2 W6 C. V  n7 }3 Y3 @: o4 x9 w[ 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
* q+ E! C, o" Q. c

Originally posted by Triangel at 2007-4-18 01:26 PM:& n- D- s4 i3 ]& B( e9 i. l2 o, V
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: \5 E* C0 v7 E  N' x
1 m5 J0 E) F" p, a- a/ ~  D

! @! I; h/ |+ }& a. m6 ~8 C
7 B  B% V8 Z5 U% W6 J, T6 L- T- I1 S[ 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:' @# k0 x4 _! M2 t$ }
咁難既=.="" C: f* v+ B" O, f( e4 B

: ~6 P0 ~6 X' y/ b[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

' F# A( H% T( y. _! e$ W& z) p: Q/ o- C$ P
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:0 I( w4 P: B9 K3 M
第一個答中有獎
$ d* u. u+ i9 M% y
  W% |6 j5 B" R* d# V8 o" r* c(x - ...

+ i* S3 Y: Y. z1 ?' `3 r# U# _/ n& ^1 w; @% W
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:" Q# r6 V9 x, }- W0 }) g! `! x

2 N( L! v' Q" ?& x4 j$ P; }# T
! I& d: ]% J+ w- R(x-x)= 0 ，所以答案係0，is it?

( b& b- ?) y3 K  q
* |& [7 k3 m/ H* K
% B2 O) h" U9 ]! I6 G
唔似a.math題$ K' \& v' }; h% g' u9 L" C; f& f
似IQ題=.=
' f+ d1 r6 Q% M" y# [4 e: k0 Q6 ]  ?" d" z: J( B9 \1 ?# |
[ 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:
8 A/ Z" e" ^' W  b" G
( B5 c* M4 A- Q& p8 _: |& c6 c& G
5 x8 ]$ r3 a; _3 |" i(x-x)= 0 ，所以答案係0，is it?

1 T7 P; }8 o2 \7 M; z) h* ~
- [6 r+ ^" W# B
Bingo~

waikong

我係學校個學生會單張見過$ [& ?. d% b0 j8 E1 X5 F
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.........1 |  T6 W( y* L8 k1 D  ~
! q5 u! T% ]5 i7 \" \+ c) N
這條問題，貼落吹水版，名副其實
+ k/ `( G0 k8 K
1 a8 W$ h' o/ L[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]