| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎. M6 X- f- t7 Y. t
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(x - a) = x - a
, b& Y2 W, _# L- k# A/ F(x - a) (x - b) = x^2 – ax – bx + ab6 D, L& p1 G# R# J
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: c) G9 |6 |* I: U  b7 c9 `(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
4 J1 g3 X8 K2 h! Y' A! P3 S如此種推，
2 r: i6 {4 H2 b, g& F. h" U(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???& o& E  ?% R* W9 {0 u, ]: v4 G
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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3 O$ n7 ~5 j5 h/ d$ j

Originally posted by Triangel at 2007-4-18 01:26 PM:, ^$ X* ~& U& B- M$ n; l
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 ?) {# ?2 l- |) h: f
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( Y8 E1 Q5 w& b, \[ 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:
  i, ~0 H% p+ ?咁難既=.="- B4 p4 U# G' x5 S; N' X' P5 O, w
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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% ?! I( N$ R; F8 @; t( ^/ |4 uThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
8 g9 |3 U' G) p( u2 a, _第一個答中有獎
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( s8 X5 ^6 N2 G$ r, u9 c(x - ...

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! z# W0 f4 G: w/ g; t6 r$ n( F(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:+ G; O! Y" |- @' 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& U6 [: u4 _5 ]3 A2 R* |
似IQ題=.=
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2 `' r3 w: j* ^: t5 }[ 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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8 V+ G# }8 Z) o( C; DBingo~

waikong

我係學校個學生會單張見過
8 x$ a7 `3 x+ O3 j$ ]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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9 e; x3 v/ [% K! @+ G! ^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 ]