| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎: w0 w2 l# M" [: u
1 P/ B. e* O3 C$ x$ s) J* R
(x - a) = x - a
6 D/ w% f  j! j+ U$ S(x - a) (x - b) = x^2 – ax – bx + ab2 U& Y. z8 R. q" l5 k
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
- D0 c6 U8 F( y(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
$ P8 i/ Z7 c9 k如此種推，
& m: [7 B' f8 m, g/ X% K8 j# }(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
5 p3 q  s& [* _& o- h6 y8 u3 i. a' O9 Y
[ 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
0 e6 y2 `, F' g/ |

Originally posted by Triangel at 2007-4-18 01:26 PM:- A* O( b  f3 q9 |, M
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
# C" c  |8 A7 h+ t( E( b9 P# y, y4 ^- X  h, m( d+ K) Y

: a% {& ~8 }0 X8 Y* e* x9 E. z, e7 D* 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:
& @- b( l. C; F咁難既=.="
9 ?3 _! T( b, g9 H& {  d+ X. h. x3 @( q0 y  o1 J# r
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

& w; L$ F6 K5 {0 c6 a; ~1 C' Z9 H' C/ ^: l/ H2 s; `2 N
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
7 I, E3 i0 p4 }9 {, b第一個答中有獎
, @" D) S4 t: ?* r$ Z% p" h
$ Z( n$ y$ z9 ~3 O- G1 v6 v1 g(x - ...

1 Q! s# X* r$ }  {! v: B8 |7 H9 m* N5 _( L
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:' h6 a( F; }* V1 O0 e# \5 l0 k" d

9 `- }- ~/ z- a: U
6 ~  y% E( r4 z8 m6 {) B(x-x)= 0 ，所以答案係0，is it?

0 v+ N! ^! k* _! i
0 m3 V' M$ E5 f% ?1 I+ H' z% K6 W6 [  a
唔似a.math題
* s  {% y: l! R) k: P似IQ題=.=: u/ v3 l# w& V4 L( j6 D8 w- w) Q* A
2 a! ?. c, a3 j; ~6 O1 k, P7 w
[ 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:' o& M3 M8 X) J; R
* ]! W2 x$ y# X4 r- r/ P
1 E0 p: J& d- k4 y: R
(x-x)= 0 ，所以答案係0，is it?

1 u3 b$ D: @/ H1 ~: c$ L
8 q# k! N1 L! G$ b9 S. qBingo~

waikong

我係學校個學生會單張見過7 D6 @' s7 \0 s
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 f: C4 @1 U( G0 n
3 N" @, R2 S7 ]這條問題，貼落吹水版，名副其實' E5 ~( O8 U5 X3 b* T, S3 w

% P3 d2 ?7 q' |' F3 _[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]