| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
, b" e8 c$ l1 f: a* @) E& R) {. U; g) D) f1 ]
(x - a) = x - a. w, f4 V% d# z* A: q8 V, g+ @6 Q
(x - a) (x - b) = x^2 – ax – bx + ab
3 M: m5 ^- c( P; u) H(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
+ P  n( j+ e: T9 v5 A. M/ S(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
+ r4 m+ K1 ^+ u: }' Q/ J$ P如此種推，$ V0 q  @% F0 j# `# p
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???( P- N; p  V1 W1 T" [

: M; |  D1 ^- E3 ?[ 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
  A7 u+ C/ S) n, J( Q0 b

Originally posted by Triangel at 2007-4-18 01:26 PM:* b- Y7 x9 w. c
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc. w5 `6 n# Y$ n4 v
* |% [3 l; U& B9 _; p

/ e+ L5 W5 k( h1 G! V+ V

- g' m0 v7 R9 F  @2 \3 C# d" A  e1 @[ 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:
: G7 v; j3 T$ x咁難既=.="
/ r  Z4 V, r* R% m; h& Z$ Y! T. Z% O* P- [
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

6 B$ \9 c$ ?0 n7 h7 r
& m: O0 o8 W3 B' \/ O+ \
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ `* r1 t( D4 [- y. m7 \第一個答中有獎
2 C2 H! J# Y# [2 t( X2 f
1 w7 a% _6 b  t8 z' q- j5 i(x - ...

4 a' P) R& |) {  x" v# `% B# [$ O6 W. g6 E
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
) T; x5 t4 Y' t0 a- q3 Z
# B9 z! w4 Z# P/ M# n4 h0 I2 h
$ H5 {" O, y. t3 a, g4 X. F(x-x)= 0 ，所以答案係0，is it?

* Q! U( b5 ?' G5 j, R/ I( k- o5 B: B3 U; `6 M
7 W3 n" l1 l# x* h8 G
唔似a.math題
+ [9 H3 H8 n4 z/ P5 z5 u似IQ題=.=
" o0 o8 r1 E& X5 I: j' ~3 s% y4 a4 l5 a' d, i9 p$ ]
[ 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:% j5 P; ~4 P, j' y2 h' A/ {
# P0 V3 L9 O% t) H, C
6 l% C: `2 t, |; g2 @
(x-x)= 0 ，所以答案係0，is it?

2 d$ V' t9 ?2 z' S3 O
* M# N$ Y1 A* d+ j+ R. _, z
Bingo~

waikong

我係學校個學生會單張見過
& \7 }% u8 t+ ?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.........7 x/ B% s. ?3 r) a" b3 E: V4 q- m
8 _% k1 L. p8 u! D1 h
這條問題，貼落吹水版，名副其實* V. P0 f* R4 o/ b0 I* f

; Q8 G+ r. k8 y  P4 V# R[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]