| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎  \* l1 z( N/ V/ M" |6 A, f0 K

3 m0 Z3 E* G6 d; l3 D(x - a) = x - a' [. {& X8 }* s$ j- f2 z( u$ Y8 w
(x - a) (x - b) = x^2 – ax – bx + ab
! y) L' ~! ]8 y7 R! C3 V$ O3 h(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# C# k' [2 c  L% [' ](x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
& v+ X3 x7 |3 q- [如此種推，
- t" `) ~" P# D2 ]+ |) s& G  t4 Z" v(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:3 |% d9 T- c1 D7 s# V2 b/ c
(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:
8 b0 g! L6 D% V8 X! u咁難既=.="6 T! Q8 w" t. O5 T
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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:* k6 ]) y) E% t' A2 s/ v- n
第一個答中有獎! G- ~( {' f( \
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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:  u2 Z( a( x9 u3 |- V' w( b& n' p
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(x-x)= 0 ，所以答案係0，is it?

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似IQ題=.=
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0 z. l" e$ Q5 P+ ~[ 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:0 p2 b8 q) N# G; f+ l0 y3 q/ R3 A
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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
9 p4 u# a) X# `! p; @/ K7 b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.........' A' y* h, `7 R
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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 ]