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Triangel

第一個答中有獎: f* z! T0 F' s

) ]5 `3 {9 X' J' |4 ]( j0 F(x - a) = x - a& G9 i# D7 h  \2 ]5 k: r
(x - a) (x - b) = x^2 – ax – bx + ab* q# N3 V; l9 h( y
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: S8 H- H9 R4 u& r
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd5 Z8 G+ X; |) i$ o! F9 L/ j# K) K
如此種推，0 j7 w- V5 z9 l" a1 G) i+ j
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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5 t0 w# o* X. Y$ M0 p# j$ h6 w[ 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$ d$ }( V  ^% s1 |+ Z  N9 ~( ]

Originally posted by Triangel at 2007-4-18 01:26 PM:
8 Q- M! P, Q* z$ t/ e* \$ ^(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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' X7 f. r- ~* T8 E[ 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:. d% r- d$ Q: e0 T4 o
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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. y4 X' k1 y% W  K/ l  ~Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:" @- O* `& x/ G: \7 C! \
第一個答中有獎/ S- ~3 t! }( W. x, a
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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:. u* Q) E2 Z+ V9 _

- U  c9 d) y$ v1 o7 U; i3 U+ f; E7 {- B3 X! \; f- p* V
(x-x)= 0 ，所以答案係0，is it?

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3 j8 ^* m. k1 H6 x2 p0 y6 T5 ^* X
唔似a.math題
* e7 O5 `6 w/ A! c9 \5 Q( m$ c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:6 q. L5 U7 `9 o5 |( e0 t7 x; Z% u! p
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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
1 H' h, `# H5 o- c  g0 i6 t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.........* V' j; _/ p! ~4 r
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這條問題，貼落吹水版，名副其實3 z3 _  B# P+ Q$ Q0 K

2 o3 N" t; Y  }* a[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]