| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎6 a2 k4 q$ v0 q+ c# Y# i/ R
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(x - a) = x - a- `, J* E$ {* g$ e. M0 h8 e( B
(x - a) (x - b) = x^2 – ax – bx + ab
9 d5 L8 G6 n% Y( V' @( ^(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
8 i0 D2 K0 ]  L: E. E  J5 `+ W(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
! w: k# }/ h0 I2 n5 {% f如此種推，
, A4 @. Z& H& h# y2 P  n/ @- B(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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! X: [0 d( Z6 M- j* ^4 T$ [[ 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3 w# ~2 }% B; e4 @: {( i- d/ p

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ S: [( T9 N1 A(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: R; t2 }5 c) v

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- W, S; [/ ^7 ~$ v# U- [# G[ 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:3 \5 a# i8 I) L  J6 d. t: v
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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) |$ R: v0 Z) eThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:% q. r0 E% t, K3 }
第一個答中有獎
0 l+ f  x9 D2 s/ X3 J$ |3 {
' d1 I1 p: f. i1 b(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:7 S/ d+ y! N. u

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
, k$ ]# X4 V6 w+ H$ `似IQ題=.=
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: y$ R6 s8 e0 s5 S[ 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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Bingo~

waikong

我係學校個學生會單張見過* i. w4 m2 h4 B7 K3 e9 |3 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.........
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這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]