| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a7 }2 X& ?; w  }, P# y
(x - a) (x - b) = x^2 – ax – bx + ab
  b+ H4 |# k# m7 L) `(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; N; n" m; z% M& D2 a( E(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd! I* m& ?) q& u  V
如此種推，5 k. \6 x3 O+ X1 a/ O
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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, T) g* i% q4 ~1 ?# _/ b* B[ 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) Z  I: U6 S! P9 K

Originally posted by Triangel at 2007-4-18 01:26 PM:! _% U0 ^% ~, }* X. h( e
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc& C" N, F, i4 \( K5 i! K
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" R( q/ G: e8 b$ [6 k8 b7 }[ 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:* H1 u! `) S7 L; n+ |+ e
咁難既=.="
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9 l$ I& d& Q% W+ b- J' p, y# h) B[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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+ ]' G3 |4 w+ Z+ I) B: G" @Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:2 u5 z/ D2 c/ H; a
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:9 r/ C/ G; b8 B0 p! P& p

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(x-x)= 0 ，所以答案係0，is it?

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# E/ O) j6 X! o唔似a.math題8 l/ m6 M$ d- F1 V! y( Q9 f& S
似IQ題=.=3 q* t* A7 g8 d; O& y
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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:- f  S& S, w5 y
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(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過
1 u9 I' d$ V1 p, ]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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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 ]