| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎1 O( I% w2 c) z

$ D1 X  n8 F' M3 K& A' b; d(x - a) = x - a8 T% S" \0 t, ^- l( ?
(x - a) (x - b) = x^2 – ax – bx + ab3 R5 O' p' R1 d
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ z+ S. j' c; C( U# ^" v(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
8 q! s$ @. d1 o1 x* s* Z0 t如此種推，
5 D4 d. J0 _/ f! P(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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" C' m/ Y& b3 n: h. ][ 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5 q/ U0 c6 o3 s+ w1 q

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ y2 D- I) W1 f. Z7 O" C(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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. ^3 b& `: w3 Z0 S) o! X& h[ 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:4 \& e) z" ?5 K1 Q. u
咁難既=.="/ f6 N1 Z+ [/ h' a/ \0 M" M& r

0 R$ `* L+ o2 ^0 c2 j: @" G/ b[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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  K0 B* Y% n  D' UThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:* r: F" N& T% {& E$ o2 K
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:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
/ s; N  F  w, ]3 m7 A8 y似IQ題=.=+ |5 M* S- r( a5 X/ Y( U8 t3 e
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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:
+ I3 e9 \( Q& B9 |% x1 f. q' y( _$ K) ^' T/ M

2 c% W& c$ }# z5 Q; ]( S: J5 v(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3 \! O0 y$ ~) H! s# ~
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9 z7 \: V* |9 B

* {5 D1 C$ m- I0 u7 z5 R[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]