| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a! m# Y+ ~. u1 v% S6 C
(x - a) (x - b) = x^2 – ax – bx + ab
5 k  C; ]1 d' o3 f3 ?3 c8 d(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: Z4 P1 m: N" R* ?/ m$ Y(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???1 ?% D) B7 x- t
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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
# M/ t% {  L! ~+ P

Originally posted by Triangel at 2007-4-18 01:26 PM:
5 G& S7 ]( j% F. b0 m(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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# X( V  h- j& s+ K& z[ 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:
1 W# b4 e2 P6 U9 n, U0 w6 w咁難既=.="
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[ 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:/ \  i' ]+ c" o9 z
第一個答中有獎9 _9 x+ `9 ]! o! H
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(x - ...

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2 o: _" S0 E" L4 S% i+ [9 Q( v9 [(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 n( s& N  G; ]6 `, ^

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(x-x)= 0 ，所以答案係0，is it?

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! ~$ B8 U& E# s. s9 O  \唔似a.math題
7 Z. {$ H! |! b% [似IQ題=.=
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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:
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(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
( p/ G! e8 l$ M6 o6 X5 [3 l0 s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.........+ C9 Q- a5 B2 S
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這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]