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標題: | TriTri | A-Math 加分題 | [打印本頁]

作者: Triangel 時間: 2007-4-18 01:26 PM 標題: | TriTri | A-Math 加分題 |

第一個答中有獎6 D( w: G4 J0 \7 m9 Q

(x - a) = x - a
(x - a) (x - b) = x^2 – ax – bx + ab& G5 d+ v- P8 J* b4 \' f( a" n5 Z
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc% ~ }' `2 S2 }; {
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd* E7 v7 q% p3 m, _/ N
如此種推，
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???! `3 K6 z! c* G( @* X& M: J8 t2 C

[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

作者: 大大 時間: 2007-4-18 01:41 PM

點解你個問題好似有d問題

Originally posted by Triangel at 2007-4-18 01:26 PM:+ \5 y5 L% P% w9 R
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc/ p8 }# ~( b9 Y6 _' n0 V, h, g. q

0 a& u: |5 w2 _7 `5 E

' ?' M3 A* w0 h: X& i' t
[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

作者: Triangel 時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:
. J5 x3 S. |4 O2 S8 ~咁難既=.="6 f/ d5 q6 Z( ^5 m& D, V5 Z

* Z6 U2 P8 H2 M) d[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:9 C) T( ?8 p0 i! ~
第一個答中有獎
( ^6 U7 q/ ?3 Y4 w& f( S
) m3 |+ [; {( [8 Z+ `(x - ...

0 Z5 H8 k+ D& `' b! E) o
(x-x)= 0 ，所以答案係0，is it?

作者: 大大 時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:& C6 [. ^3 X! f/ F7 R

: }. w8 v) ]3 A- p w) `' ?! J/ ^# O; V( J, f5 D
(x-x)= 0 ，所以答案係0，is it?

) g2 x- a4 {8 V
# F5 h% Y" H1 u) G: w: A0 [$ `0 M
唔似a.math題
似IQ題=.= Q) X* ~$ {$ E+ N
* k" s. T# Q' Q7 C9 Y( k% b [
[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

作者: Triangel 時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:7 f, K2 H2 B/ Y' C$ w e

8 b8 {* X& H3 T4 a7 C/ G
: c4 o- H: g7 x X/ z7 i(x-x)= 0 ，所以答案係0，is it?

Bingo~

作者: waikong 時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過

諗左一陣先諗到

作者: playbr2 時間: 2007-4-18 04:00 PM

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

作者: karen0123 時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0.........

這條問題，貼落吹水版，名副其實

& G, D# @' P/ {# I2 h1 T; ]& w

[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]

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