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Triangel

第一個答中有獎- `6 N; k5 ]3 M

' I# A& Q7 k* {& O) h0 ^(x - a) = x - a4 t2 l& n0 M9 p! d
(x - a) (x - b) = x^2 – ax – bx + ab
: |5 q7 o) c+ `+ W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
  a6 o! `+ Q+ M9 A/ c(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
) z4 Y4 X1 w2 w$ S如此種推，
; y: P* b/ s8 D(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 j2 x2 D; i: v8 [

Originally posted by Triangel at 2007-4-18 01:26 PM:4 T5 d' Q  Q) B0 {+ V! C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc; a5 {- K: n6 z7 D7 {* U
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2 e- }( m( Z5 ^! V* O' v[ 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- C4 p: u* ~2 J/ s, c6 a
咁難既=.="
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+ H$ F! }$ e0 d, T  O1 \[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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. z! X; Q1 D/ k; cThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
4 o! q7 q: c7 o4 W9 J1 a第一個答中有獎6 Z; j: U+ G  O0 ~
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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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  a/ Q% g' ?! A. |& j
* X9 \, o6 V: f' H(x-x)= 0 ，所以答案係0，is it?

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! z) E0 Q& o3 ^2 x唔似a.math題
$ N# ]9 P& ^* y似IQ題=.=1 I" @: L6 C* `" [

0 ?( E* x( R; G' L9 `[ 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:9 T5 p- u& u: T# u" {! _% j, y

/ x% i& s5 ?9 s3 O( M  R7 J, k: G/ q# j" @2 T5 b, S4 f# A
(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  `% V3 _3 g( t% R7 Z1 Y
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.........
7 T' h2 _* c3 [4 P% K! f9 L0 S$ G! }% c  h. _0 e3 C  J+ V) B- T
這條問題，貼落吹水版，名副其實6 L. v1 ~" {% ^( {* c

, ~0 A! o5 D5 O" c' J[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]