| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎+ _/ J6 U2 ]/ `, u  V5 \% |
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(x - a) = x - a; A$ B  g8 L) ~- e. C+ B
(x - a) (x - b) = x^2 – ax – bx + ab
. W8 r( R" f9 F$ o$ m- Q+ T(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
1 e8 b8 a6 Q' M8 c' G3 N( ~# U9 [(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd! S+ j- c, H: J3 E" p
如此種推，5 c* h$ S1 }7 }
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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0 h0 S  I' G7 t. q  z- M+ `[ 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- ]+ [5 z" Q! j, E, \

Originally posted by Triangel at 2007-4-18 01:26 PM:1 @8 K$ a4 `4 o5 T, f+ ^7 T, q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc2 J! f- p* y: Z. w% Q2 l

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# T/ B( e  Q( }[ 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:( ^8 r% ~* O6 O, J! Z5 ]
咁難既=.="% f4 K; @/ b7 W! h6 {) ?
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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:! W& o- w% b7 o5 h
第一個答中有獎
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3 I7 ^6 p6 k0 [, U# {2 I) Y( H(x - ...

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" t+ U! q5 x. d. @6 o( p(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:/ c0 W, W3 m8 _2 x( }, h: C
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' r5 I+ [* m% O3 p. g7 Y(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
3 y6 D; c& f+ e& `" b似IQ題=.=
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% |2 r$ I  |/ H$ j[ 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:: @7 E  }" P& {* R$ ?
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% Q3 J3 s7 O' {# S8 a2 H1 j(x-x)= 0 ，所以答案係0，is it?

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7 [% o% j- U8 BBingo~

waikong

我係學校個學生會單張見過+ k8 k6 S* s# I
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.........0 T( ]# o, o! I3 P
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這條問題，貼落吹水版，名副其實: D' R3 }% l& E/ k, y* |& m
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]