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Triangel

第一個答中有獎( R; @* l  ]. b

0 ]) |& ]+ _( _: G) C(x - a) = x - a" R. O; ?# b: G6 }+ V
(x - a) (x - b) = x^2 – ax – bx + ab) E4 R* o# I7 Z& U  e7 a' B
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 c3 o* V8 M6 n
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd# P9 S& w: X' W0 A
如此種推，5 ^, y, G7 l+ O" l
(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- _9 k# N  Y0 v& P( b

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ U6 d1 j7 R4 |. D(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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+ u5 k4 p2 N! G$ X6 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:
. C  K4 r2 v% H2 w4 a咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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1 `9 {+ F) S  E8 CThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:, i+ ^0 w6 F/ y8 m
第一個答中有獎& o; D; K1 M6 L6 V: ]1 R9 ^

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+ ?0 @( [. M! Q# O$ j. C(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:. j0 |. [# y" a# f) U3 z2 K
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9 P' ~1 ]' F8 d% j- s) C4 I* v(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題7 G! o5 h' A  h7 k  H8 d
似IQ題=.=' |" W8 x1 U# U  v4 B7 @/ o& O
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[ 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
  u$ r* ^" O4 y6 o+ ?. j7 p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.........: f7 `; l4 N7 `& P
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這條問題，貼落吹水版，名副其實! J5 h! C, r6 t, L( L( h& M
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]