| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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; v* ?( i# @; Z(x - a) = x - a
5 u% w. T* t% q, Z. V(x - a) (x - b) = x^2 – ax – bx + ab9 Z3 N+ ]5 J: d9 F" ]7 E
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc5 W- v! x) O# X
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
1 J1 U, B/ x$ y如此種推，
1 @7 ]0 s! C& }1 Q(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???- w4 \- [7 g! u$ g  k1 t+ G% l9 s

* B$ M; I0 I" s% W[ 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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
$ g. n0 }4 U0 ^+ H7 v: p(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ 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:
, Y" H# K9 b/ o- A) d+ o咁難既=.="
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" [( n0 L! `" _3 q# a[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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+ r' q. n% t' B3 m  j7 cThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:) X* g$ {( {0 k0 b8 i& b8 L
第一個答中有獎
( N5 V6 a$ O3 x% x* ?: j" u( }7 d* a( n3 d( X4 X- \, d' m0 }
(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:) Q5 u, Z' K7 a- o. ?

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題8 {" j  F$ l: |: {. H
似IQ題=.=% L1 q# {& U& x4 M) f
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[ 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 X7 Y% }$ o; z
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, ~. t0 Q0 H: [( v+ A(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
8 X- I" d6 b( \3 P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.........0 r9 }% q: [& q# r6 _) n7 `

8 ^, @" k- j1 e4 j8 A這條問題，貼落吹水版，名副其實1 N8 t6 [% {- H7 T0 L) H' d' ?

2 O' B8 W! g7 \- t8 \! R[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]