| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎9 K. b. X( ^, U* s
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(x - a) = x - a
# i- X0 C" Y* N$ T& B6 u  L(x - a) (x - b) = x^2 – ax – bx + ab) Z1 x3 d  z( G; S# u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc* m3 Q% _6 _  ^9 k& J
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd( |1 C, m( H6 V9 W2 |0 @
如此種推，
* S8 O3 j' g  K) R% ](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???7 @" o3 W2 G* j* z. N( ^! [

5 y# r) D$ X) C7 W9 @& }4 Y[ 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/ A6 G" V7 e2 V9 }9 E

Originally posted by Triangel at 2007-4-18 01:26 PM:& c6 i+ }. x9 V% W) j& P
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ 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:
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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:  D: d, n: j) Z0 y% e
第一個答中有獎
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(x - ...

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  H% g3 h5 x( 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:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
6 n% O0 X: Z6 l) A! w  V6 b$ N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:: c' e. [/ P! Y0 y4 @6 {

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(x-x)= 0 ，所以答案係0，is it?

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: H" \4 \4 w; |  aBingo~

waikong

我係學校個學生會單張見過
% h( g) N7 |9 Y& J& }& X) K' z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........." r+ a& J3 j! f9 K, T' g

' o3 J/ T2 ^/ E/ X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 ]