| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) }2 F- n8 q. D& c  m5 ]3 C
; Z6 ?7 W9 A6 r
(x - a) = x - a0 p& j* I" K8 U* k9 p% A* D( Q# _
(x - a) (x - b) = x^2 – ax – bx + ab
# |/ ?% b8 B( t% c6 S  w2 w" m# t(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc$ h7 B3 g. v' G& U5 Q# ]# _
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd1 {% P/ x" l2 {! r* ], V  T" w
如此種推，5 H* y, U' p+ |& f; h
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
% n! k3 X6 G/ V3 r  M% p0 Y1 `" m. ]2 d( [3 N$ ~
[ 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8 G4 v! D8 s0 S; s

Originally posted by Triangel at 2007-4-18 01:26 PM:
- u7 ~. s0 i; I; b0 A5 k& c(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
/ z/ s: ~9 g" e. ?* G% C9 N; [! y3 d, h$ Y7 H! }  z2 H

3 V& m, {4 }; p+ z" c9 h3 n

, K! Y8 N0 N9 |1 W% O8 ~[ 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:( ^6 Q2 q  ?' h* n3 c# R0 V# t
咁難既=.="
4 J% l7 F; V; V3 T7 ^" T' I" v3 ?' X9 B5 z  u, M
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

0 J( }3 D6 ^3 k. m. V. B" P3 r
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
5 ?' ^# [; X' X8 v. d  B第一個答中有獎
0 [9 o( Z* n& \; e  J2 m- {0 Q  t; A7 ]9 l% d
(x - ...

! ~. W* ^* g* d  k' D6 U
. {! ?# v: r% f; H# s' d0 c(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:  G$ m- c# p0 r+ m5 p4 b) e' R
! f8 h: K) y8 {3 i- S

3 h' T) N+ c7 w, W# O(x-x)= 0 ，所以答案係0，is it?

, S5 |% s1 M6 I: U7 e  Y5 I4 W) D0 W6 q* Z
) F3 u7 R, @6 f, \7 D. @  z
唔似a.math題3 q# \: S# V' P, O9 m$ L
似IQ題=.=
. @9 \0 j- {) e* F% z: ^- J3 G0 F1 A( |( ~
[ 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:
7 E( a0 \( ]9 Z
- o* J2 t$ X2 S6 c! a8 u) X( q8 ?# \0 E1 b% |
(x-x)= 0 ，所以答案係0，is it?

! m' a2 L. _+ ]4 @
7 R, c" R; M  G- _: @Bingo~

waikong

我係學校個學生會單張見過  B5 R, t8 ]9 u3 T8 V' B
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........./ U5 z' e& R. N* F+ M6 Q

7 G0 `4 z: i+ C3 n3 a: c4 P, m這條問題，貼落吹水版，名副其實/ s% }2 J1 f2 Z. V# ~2 `

" L$ X; V7 _! I" b6 ][ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]