| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
2 n; z9 ^+ J7 B2 G9 H% D(x - a) (x - b) = x^2 – ax – bx + ab/ K. T. r5 s9 v. q: s, Z
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 R% t0 A; g) X7 G
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2 y( O* R% r+ Q
如此種推，0 _! k+ F* w+ d7 P( k
(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
. N& l3 y) k7 s  @: G6 n% b(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# d' G2 q( `3 Q
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1 `$ a: u% p! i3 q$ `4 s2 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:
9 @9 _$ h  `4 b! o% G咁難既=.="- ]4 {0 Q$ s4 M+ _3 {4 z

" W' B& A  l0 g[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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" v3 A9 n4 V! y( E, Q+ c9 E. R* @Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:( M0 r" @' O- \  l( `
第一個答中有獎2 ^8 Q" }; h  `3 N
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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:  i8 |& r" N0 q
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/ Z: D% M. g' @. I1 |' `7 w+ ~' l(x-x)= 0 ，所以答案係0，is it?

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+ f% |2 {  {+ s/ [( U+ F唔似a.math題. L, D- P  C' ^8 R
似IQ題=.=( N8 \' P# ^* e4 ]

( A% X8 n% |& [  M[ 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:
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(x-x)= 0 ，所以答案係0，is it?

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+ Q# Z! b& K" ^4 t+ g* h% F: Z3 HBingo~

waikong

我係學校個學生會單張見過
  i8 H8 z6 d& L+ e+ d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7 [1 |  V1 ~/ `, G

# P0 O" H' }5 i& D7 T2 v[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]