| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎$ C. o' d9 T" `) {; F' V
0 i* W3 B# P! v* n) z
(x - a) = x - a
) m- D7 u& ~1 s& D) e/ z7 {(x - a) (x - b) = x^2 – ax – bx + ab% Y  x) O& t9 K0 x
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
' l/ b- f" R1 j3 E1 C(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2 Q3 t3 v( \% |* E- p, g: `& p
如此種推，
8 k$ |) o7 l$ ~(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
. c/ _& `7 n# i  B( A  Z  m
! J% d0 G% e! q, l) t) g2 S[ 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
* k; L# }8 Q- n( Z/ k6 [

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 e% D" v' h3 T8 @  h& [(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
5 K0 t' h  p0 t/ c
3 T- E: ^9 v5 I5 S( V. \8 e

9 f% q  m0 w3 U& N2 t# Q
9 ~. i+ j1 B6 Q[ 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:: d- T' `* A0 _
咁難既=.="
' n* h9 ?( w! Q; [# G6 \0 k' D) z. x1 H' E7 Q4 ?( S  d/ y, a$ J
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

2 i. {0 T- |' R6 }! i
0 [' ?; f9 Y; DThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
0 S4 c' t; g0 Y  `第一個答中有獎
- ?6 C8 s/ N  t& ~$ d* U9 S6 Q
: P4 _% [7 p; I0 B" h1 M9 z- A' o(x - ...

4 J% j% w1 K) R
7 M  B) ]+ V6 l9 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:* y7 k; n: \# K- s6 T& H8 Q5 l

6 I  N- c( ]: m8 f" x' u1 h2 r$ p+ S* r) W& K
(x-x)= 0 ，所以答案係0，is it?

9 h( B* `, E& H9 k
1 ]6 ]! F5 P) O6 u9 K* ?' S! [8 P; v: B0 {1 w9 p- V
唔似a.math題
, a( K- I$ a0 B; I8 j似IQ題=.=4 F. y3 h( m: ~% e* ~
) g7 w" d/ J. z$ D; B+ u1 ]
[ 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:
: V# Y$ d  \- K& o" v3 _
) B6 D! o: X% i5 O6 i. j, D1 _; s' \- A7 `
(x-x)= 0 ，所以答案係0，is it?

! L+ h5 n. ]5 K/ H3 ~+ Q+ c  l
8 Q0 e+ B- ?* F6 V( v+ jBingo~

waikong

我係學校個學生會單張見過
$ M/ G* ^- Z% 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.........
' i. O6 O: C! _0 D0 x
/ m: w( B6 y1 G: e這條問題，貼落吹水版，名副其實
, }# Z0 L! L& `' i# M* A
0 X- H6 ^8 ?; z' ~( T" P[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]