| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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; r: D+ V4 J% J% D6 G(x - a) = x - a
7 u' E5 c9 r8 D7 M(x - a) (x - b) = x^2 – ax – bx + ab
, h4 V( p; @* M8 F, v$ T8 E. l: {% V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 b. d, q1 y1 s$ ^+ R0 v
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd6 k' K2 @8 ]/ F" c' d4 X5 b) ^  J
如此種推，
6 w5 ]" X3 D2 x; C(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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- t3 i/ B8 J+ K! k, {[ 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:
9 I+ C3 ^3 Z3 c- U# |; T/ m(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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/ ^5 `3 d% F% d# a) O[ 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:
0 }: r+ a. f1 |0 H8 l1 B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:
4 w- W& C) }( N) E% a7 k第一個答中有獎
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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:3 N- Q9 {/ }7 A  Q3 r( l

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; Z& e9 u; }: w; ]- v; T(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題$ j* r3 ]! p3 d
似IQ題=.=+ _2 S4 h0 N; ~7 F$ Q/ n: a
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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:( V/ \, q4 d4 @7 x: y
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& ~; {0 {' r; `* g(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.........
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6 l/ P/ ]3 G/ j# K" E& m8 j0 l這條問題，貼落吹水版，名副其實0 \" T2 `* g/ K3 j" N8 i, |
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]