| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
* ^; a$ Z8 ~  m( h% w(x - a) (x - b) = x^2 – ax – bx + ab
6 \: }# ^. L$ A/ D8 A0 D(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8 P; n$ V6 b. N" ~
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd5 U/ l& l4 K' ^: g4 |
如此種推，
: C4 s, t& n5 j4 ]) C(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???7 k, w/ u8 J/ ?: t0 l

! H; r/ B8 L+ X9 I0 p( L/ r6 A  N[ 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 b4 z( d# y) m% H; b: |, r- O5 v
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:( w, K3 m5 R! W7 V( G- A, t
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:- P% T8 _! j( _! \7 n- [  G# Q
第一個答中有獎+ `/ ~7 c9 J( i+ f# _% ?, D
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(x - ...

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7 a/ }5 ]$ w9 |) b' }) E; Q- }(x-x)= 0 ，所以答案係0，is it?

大大

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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& ?+ U. O( d9 F7 u% E唔似a.math題: m+ p& ^' ?  j: c; |4 Z
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:8 l) N. r" t1 i9 h& f: _' b

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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, f( y& f# }6 _6 ]
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.........) {  e" s0 e( g: s
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這條問題，貼落吹水版，名副其實" K! Q* F* ^/ `- e! Z6 K
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]