| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a: l& l; v, v: m" M
(x - a) (x - b) = x^2 – ax – bx + ab
% G, I4 P' ^, v% L& k4 i- }(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc9 P% U' {+ W, N9 W2 a
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd: t, K/ @: V1 P3 H' K: W
如此種推，5 i" l& i" v, u1 o5 `, v5 |0 N
(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6 U( Z; W& Y3 g6 n0 D* W3 M" [

Originally posted by Triangel at 2007-4-18 01:26 PM:3 W6 o: D, U1 f: q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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8 J4 S, Z" ^0 ^0 ~" U. f0 ][ 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:! t' S% \+ G# @- E" Z4 u: y1 I$ i
咁難既=.="
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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:! R: w" u/ Q4 F& P, x
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:1 }9 `6 g4 i% o* _
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(x-x)= 0 ，所以答案係0，is it?

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  r* v4 Q( z6 o2 B$ v+ F* V唔似a.math題
8 n( `- W' D  V- z* F; o$ X: w# N似IQ題=.=; V0 u2 @1 Z3 ~: Y& E' F- |
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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:/ W- A" r7 `% O  B$ t

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(x-x)= 0 ，所以答案係0，is it?

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3 h& A, k) V6 o5 M) TBingo~

waikong

我係學校個學生會單張見過- z. e+ A3 F/ `. D6 j; z5 r
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.........1 o/ d; C$ L& G, y5 J- [; @
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這條問題，貼落吹水版，名副其實
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# @: E- ]9 G/ X8 V3 u! e: s6 o[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]