| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) d$ @- I# [. e( P! Z: r  n; b) `
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(x - a) = x - a
! X8 V6 D  m8 W$ S(x - a) (x - b) = x^2 – ax – bx + ab
' {* z2 Q( U4 y( [; E$ y(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
+ X6 G5 k* q9 N2 y0 Y* g(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
7 t( X2 E7 m; J% N0 p  a如此種推，
! Q' K! ^. e8 f9 Y(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???" _. v5 E& f: U0 |1 v+ {/ S) L

' ]' ]7 J. p0 I% ]5 }: b* f. r[ 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6 o# N4 R  L1 O7 b8 ]( Y4 N

Originally posted by Triangel at 2007-4-18 01:26 PM:, B6 o0 [8 i) E; v5 |* J  P
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc+ R3 E. h$ f! c: G5 c0 p" {& M1 c; W
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2 Q" I6 ]0 y* i5 }- e7 J[ 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:
% g4 t0 v' r# p咁難既=.="
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  e1 C+ A) j' p: v[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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" W& u+ K  i, r% K! L" N3 kThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:$ f/ [+ T/ ?8 W9 |( e
第一個答中有獎9 t0 H& {8 I3 }3 C

5 h9 j" S0 H; M; }1 z(x - ...

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+ k2 z6 I# Q$ g8 X(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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5 f% u2 l# N4 d2 b
唔似a.math題7 r8 W0 G; v* h# d# w( L
似IQ題=.=
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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:) s8 G  M" n  w* a+ j- b7 g; P  Z: Q
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/ p6 S6 I! G4 U) F% }0 [(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
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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
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]