| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎% H6 Q, u! t" `1 N
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(x - a) = x - a
. N' x* l) U! n+ M5 Z(x - a) (x - b) = x^2 – ax – bx + ab
% U9 ?! {! i# k8 E" x7 ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. |7 c8 `, R& F* c) P$ I2 [(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. }; r7 ]% i; h& ^+ @, s# L如此種推，
) C* }: p/ x# K3 b, o6 R" U(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???/ Q/ C& ^7 q, g0 W1 I1 v; x3 N
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[ 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" W8 \) N9 f- Z( S' t

Originally posted by Triangel at 2007-4-18 01:26 PM:' i# P+ ?8 U( x6 [' c* l: j& B( W7 ]
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc% U# J  E3 i  U% V# J* V: q
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$ J, z* w3 |! _- L, |9 J[ 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 P& P* k/ k9 F2 F7 y' A( L, o咁難既=.="
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7 J5 a4 s# O- ]8 y[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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0 \( M1 q& {% n$ x8 AThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
' H' K" j! @" `! H9 g第一個答中有獎
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(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:; a. ^' e$ k% _3 y
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題- p2 `- E6 r6 R3 h3 t
似IQ題=.=1 F7 @( W! o+ n+ c7 f8 E( F

2 J4 t$ h& G+ X, d7 l7 ~% N$ t, @[ 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:
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$ v  g: h( t( n1 O" ]0 w( W6 {0 F: {5 a% e7 w' a( I
(x-x)= 0 ，所以答案係0，is it?

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$ i3 k9 Z& U; X" s$ n7 s& IBingo~

waikong

我係學校個學生會單張見過
6 v7 R7 u- y9 x$ v$ c$ 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.........; p. m6 ~2 m0 v$ M& \
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這條問題，貼落吹水版，名副其實" O8 C6 S& c  _. |. i3 U' L
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]