| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎$ s/ ]  Q8 E% G- V- Z, D* N
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(x - a) = x - a
* G  I, u5 E! m, [0 \' K9 i+ T(x - a) (x - b) = x^2 – ax – bx + ab
& r; y8 e5 F- @% z(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
( d! [. H$ Z6 S* ^(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
6 H& u: U2 _5 H- L如此種推，$ q. T, V7 A  U+ Y0 o
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???; x; Y1 k7 W$ |, B6 J4 x
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:6 p# a( d$ E- x
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc5 v7 B1 M1 y5 `- M  t

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3 [8 {! ^% n( |4 I) j4 w) k[ 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:
: N' {; n* Y6 H7 O; M4 M1 P* o# @咁難既=.="
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  ^# w$ R; E- @1 a" Y' l. S2 @[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
' A4 M7 ~% t/ d! o, |! X5 n, @3 a6 \第一個答中有獎" I; B: }3 e; ^' ]0 R, k
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(x - ...

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) r- Z: k$ x8 S+ H  C1 M/ F(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:! {$ ~6 ~# `- F' ~) L" C
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(x-x)= 0 ，所以答案係0，is it?

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5 V) w) C" `- x% J唔似a.math題& d2 t3 Q: j3 t2 g- g% B( r' X
似IQ題=.=
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( U* _& I2 Q  h: w8 W[ 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:0 U1 B3 T% W5 l- F; e& r+ E

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" q5 B7 Y7 V) ?(x-x)= 0 ，所以答案係0，is it?

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2 f3 k, |$ S% G: `% J$ N( yBingo~

waikong

我係學校個學生會單張見過) f# E( h+ ^7 R: c$ U! ]2 Q- c0 ^
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.........' F) ?% O7 v1 ^1 Z7 \  l: p1 H9 K
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這條問題，貼落吹水版，名副其實9 _- ^2 l5 ~0 e) e$ Z( ]

6 Q' z  f: T! j1 O/ |3 m9 Z9 s* P[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]