| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
$ N$ B/ z1 U8 U- |1 V' u(x - a) (x - b) = x^2 – ax – bx + ab
, M4 P" K0 a& m1 |. ?8 `(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc4 Y0 Q8 X5 T3 y6 Q; h6 h
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd# R/ f0 b# t1 T$ ?" F6 Q
如此種推，; W; y8 X: x6 \
(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:; w- n2 p: ?8 ?# z0 g0 \3 y  t
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc5 B3 {& n$ m; j; q, p: J
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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:
; n+ @% k% i: {& G咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
7 i& d# [& E- x7 \第一個答中有獎
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2 a  Y- K, a' m/ E5 N# q(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:" N5 B% p6 d. g( p% n& [
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(x-x)= 0 ，所以答案係0，is it?

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  q8 \" x( H* ~+ G9 w- r唔似a.math題
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+ C! ~) i5 _3 x[ 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:# g/ T  P8 Z* K, E0 h0 M
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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
4 N8 A/ v) t  ?4 C  T; J) ]. c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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% Q8 q1 {. E% p* v' t. B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 ]