| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
2 ^1 \/ O$ {0 S1 `% r(x - a) (x - b) = x^2 – ax – bx + ab  W& D+ S" h" \8 v9 L2 @5 }
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ D3 _5 w6 n, |6 X  [2 I1 F4 R(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
1 o5 \6 q: |, q3 I% f' U3 ?3 |如此種推，
. _& j4 p( T2 c3 _$ ^(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 O; V; [* g$ K( {* ^
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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:2 J! `% o( p% J6 _" @
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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' G7 D. \; X( O4 C  {3 P( M[ 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:9 V* E3 W  [2 g# Q
咁難既=.="& E9 Y# y$ B5 b
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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9 H9 t- P1 x7 B/ O/ o* QThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:, u6 P+ K& }* _8 }' O& R
第一個答中有獎% G. H" g8 A( D: F1 K
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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:5 p: \; K2 w. 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6 z4 v' o* |  X+ s7 o
似IQ題=.=
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* ]+ l9 o- D; m7 q[ 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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4 ?: Z: \; r  A* U+ X8 Y. \Bingo~

waikong

我係學校個學生會單張見過
( s5 B% f+ I0 b! z: K$ ]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.........
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( \: {- ]. d9 \0 [4 k這條問題，貼落吹水版，名副其實! _6 i) D: s# i( X* Z; A
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]