| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
" r9 ?0 A- ?) _+ N4 u2 r* l* ^
/ W: W0 O# ]  q3 g(x - a) = x - a
7 _" Y( a' i. f$ j% b# y) d(x - a) (x - b) = x^2 – ax – bx + ab
* e- G( _: q$ ^: @. ~/ c4 Y+ t(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
* Q" y* c+ @8 N- m6 i1 [(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
0 o# x* P% B8 g9 g2 Y如此種推，* U7 `& Y* w* E% a4 r2 }- i* o: G  o$ W
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
( u4 E. {3 N5 {& _  S3 \, X, S1 Y0 K  G  u
[ 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* c0 A0 k" t; g3 D6 |/ A

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 u) a1 W8 V  W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc/ L% P+ X2 w9 p0 |
8 h+ j+ a4 K) G

! O: o/ ]3 w* ~# F- S9 [

$ y4 @7 `, o  Q! L[ 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:
' j- h  {9 ?6 B( G' O; _' l3 U咁難既=.="
9 b: X7 p' {+ M, M, z  ?6 b4 J7 M
, {* b, Y2 m9 u% U. G" T/ l[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

" M% H6 R& |; c+ B/ _
3 \- Q) ]1 r9 `2 [3 C
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
. f- X1 D2 \+ G) B8 B第一個答中有獎
5 V, p' g- }& l* T, i% w3 K! P/ k
(x - ...

! Q9 l# Z5 l) @9 P# G$ [4 e& |8 e9 h( F5 S
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
- ]/ f; T- Y. o; S4 j
2 T8 R* X# B8 r+ s+ v9 T% A( |7 K+ `# m
(x-x)= 0 ，所以答案係0，is it?

& \9 a/ n( H- `0 ]0 d$ Z  l

4 X0 Z/ g8 E  v3 s; d7 C- ?/ i) y# f; d8 v& l& h
唔似a.math題
' Y, t0 Y! [: n" a8 U似IQ題=.=
9 r9 q  X  T7 L0 h+ b4 `  D8 e
( F: ]5 H# n1 r; k  c* j  E[ 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:
- ]; b5 ?# L0 Z% U# K9 x$ n$ h8 |) u
/ g8 U4 P$ d6 L! U5 w
(x-x)= 0 ，所以答案係0，is it?

: T/ X4 k& z1 k5 I  p2 ^3 H7 U
. [; c2 ^7 C) t% x, nBingo~

waikong

我係學校個學生會單張見過/ o9 g9 ?5 i' Y3 c
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.........$ z3 c6 J1 |/ }0 F5 v0 `
) ]- N5 Z2 e" Z
這條問題，貼落吹水版，名副其實
8 i. \1 S# z, @. F! ~; E8 v: R. Y2 E, V2 I) J8 N% y! a  X
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]