| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎. K' e7 L6 d# b7 v

3 _) _8 G# o1 ]' W/ n( G(x - a) = x - a3 s( Q' j0 v$ L1 M, W- [
(x - a) (x - b) = x^2 – ax – bx + ab
4 o7 Y( x% h( ?' I5 ^(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8 V& F0 o# a$ z8 R
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd0 }+ a( w$ O0 Q2 Q
如此種推，
2 t& b  a8 Z5 U; x! s4 P! C; |(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???4 }6 v4 n, ~, H; k" i

: T' M; K. z# Y9 n$ d9 ~[ 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, M3 m5 q9 D) A$ r- }7 w

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ @# X# e0 V+ s& d6 e3 |* i(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:1 N5 P+ @. i$ ^8 R" j& U/ A% y
咁難既=.="
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% n6 z$ _+ P2 y! V* {9 ][ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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5 d7 F5 |) b) A+ zThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
  x% }. X- R+ z# {- 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:6 X" j0 `/ H; N1 j* v% d. R. h

4 N8 q% i, p' o8 ?) }( S6 c- X7 u5 P# ~/ r# m, ]  h4 J
(x-x)= 0 ，所以答案係0，is it?

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* C' e) `& R8 h2 m唔似a.math題6 N8 O) @& S- Q# ~6 ^% A1 u1 @7 f3 k
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:: @5 C) `) M8 \  j' A

, Y" o7 ?1 u4 F: @( s* w! u# V9 m1 X# \* F; X
(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
: r2 V. z: I4 B7 b$ j  D! 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.........
  C& \2 k. a" S2 b* ^5 H
" W* r5 k5 }% N% {4 H( h7 G這條問題，貼落吹水版，名副其實
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, i  N% O0 Y3 g8 w) G[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]