| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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1 X1 v0 r& n$ K4 v: W$ T(x - a) = x - a# [3 g* C; e' T' X$ g
(x - a) (x - b) = x^2 – ax – bx + ab
  u8 N& S3 g! i& F  M( S(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc' y9 x& {! Z" G1 \( }) D
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; t: A+ q# B2 C) P如此種推，7 N3 t, _; x, t- s8 B1 M& c
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???# D! t4 u( I9 g3 q  a
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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* G4 U' P4 b4 w$ U) V. _9 j, |+ c

Originally posted by Triangel at 2007-4-18 01:26 PM:
7 E3 Y* c  H6 p' ?+ d(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc1 A% _- e& {# D" M8 x! t  }9 ^0 k

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8 l' r( `" v$ ?% y! U9 y[ 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:
* _1 n& f5 C7 A, U0 ^咁難既=.="
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* }8 ]. s4 i, f0 h[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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9 v$ }1 @# Z* K3 U0 xThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
6 B( M6 U8 j$ K, h# m; }第一個答中有獎
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; b. H5 A' I7 Z. q( h(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:1 Q7 _; R; R) F1 N7 p7 Z
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(x-x)= 0 ，所以答案係0，is it?

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& \2 |  Q' |  r# z9 r4 u1 U7 m' t唔似a.math題  P& j5 a2 C' m
似IQ題=.=* Y, H3 l" _$ S( J

$ C5 Q; f+ b# d. |  I[ 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:$ W0 U6 Z' _8 e% a
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4 g! o7 ^- l8 ^(x-x)= 0 ，所以答案係0，is it?

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6 }7 u0 `% Q1 w% c# `Bingo~

waikong

我係學校個學生會單張見過6 F. {' n' x. G$ @0 ]
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.......... p4 v8 l, a/ S7 ]7 F

$ `; ?( s; \5 `/ @+ e% ~; h$ ^這條問題，貼落吹水版，名副其實/ r8 `' C/ V2 J* G- a* f
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]