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Triangel

第一個答中有獎
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- t$ {, X6 m  `' A; b(x - a) = x - a( j' ]! A% q! m  u2 a- c% E; O' x! T. p& S
(x - a) (x - b) = x^2 – ax – bx + ab- X. [, E# Q( k( |/ |/ ]
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 G. O+ d& k8 ]3 k
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd$ J4 i4 ^3 r& d$ e" T$ S
如此種推，
$ e$ x' R8 {( m7 ~% K. k(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???" N) [% \2 f4 W# Q" f: U

2 G0 l. {) z% h% p. F[ 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:2 T# M# \5 h3 {; _; t9 y5 Z) Y: F% w% }
(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:
! d3 `$ K4 j; ~% \! A6 S& Z4 Y咁難既=.="% y" g. c" E& h, L' R

  d, L/ k1 g! |3 D5 b[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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* t3 U" d( \* l/ t  IThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:: a  ~5 C( @6 m8 H) ?" W
第一個答中有獎( @& ], a' H6 {; z* r

7 f" S. N2 z; w5 a/ e(x - ...

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- h; C& {0 }3 s(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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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
2 l( T3 O3 p$ G; \2 `, Z" Z似IQ題=.=
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( T6 n: W, [' _; |' U[ 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:; h& `5 M& `) j; b  t3 a

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, r; ?% m7 l  [* B% K(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" X0 N9 K8 i  K. k
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3 c% [% ]3 ~! i( m5 p- a( ?- i
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]