| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎% m0 S% `9 Y$ Z
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(x - a) = x - a9 A, L8 A$ Y/ v# Y7 ~! R
(x - a) (x - b) = x^2 – ax – bx + ab
" e0 f! b0 R) E: y2 s(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
% x7 V6 p7 @: a3 M2 I: c(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd* u) N6 ^- T4 e: [( Y
如此種推，
8 g" F4 k1 }% E/ U(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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 }" {& k* p' ?& n

Originally posted by Triangel at 2007-4-18 01:26 PM:
! {" \2 Z6 i, B(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:! l! r" {" s0 n' |6 M6 }/ w
咁難既=.="+ S0 d% i' z( ~, N& n
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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:% Y5 l$ V' T. s4 Q2 g6 J9 F! P
第一個答中有獎3 k. p4 O  P& F8 i  F8 _
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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:: e0 e* V: r( Z( @& f; _

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$ h  ?% k0 h' _! i(x-x)= 0 ，所以答案係0，is it?

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5 [( \  Q! O! u唔似a.math題
" j- B5 W# J& i- L5 R8 H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:# b  k& W+ X  \' {+ F
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- M) a9 m! N- [( f4 f3 F; g(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
* Q& e" Q+ D: B- A6 l- g2 `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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: C0 c! Q: z+ M* v3 W! B6 i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 ]