| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a& B$ p3 }8 [) Q. x
(x - a) (x - b) = x^2 – ax – bx + ab
* D7 ~' Z& L- e, T5 i# g8 z$ R(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: U% M# _$ S# B# ?; F
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
$ V1 {- A: W( v/ }' Z4 j) l如此種推，+ B" Q$ u' o# F8 X2 o( _9 O3 m! n' d
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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:
% C; b6 g( x! H7 m9 \- ^(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc1 Y5 D8 j; u7 Z8 b
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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:
) B+ [0 S/ k# \. g咁難既=.="1 o% U4 v+ ^4 O2 v2 _2 p
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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:9 Q8 G6 a- m  b4 w7 [$ G7 l
第一個答中有獎
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9 v2 l) ~( H8 Y$ F0 Y. R(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:0 n, }/ p/ N1 i7 G- t; }& k

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0 P* p3 L- N: I& _8 S5 q(x-x)= 0 ，所以答案係0，is it?

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& `- H, ^3 F1 A& Y. V0 x唔似a.math題
! s# I/ ^3 w* B+ h, X0 v4 {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
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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.........+ ?4 p* V0 W- t2 l
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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 ]