| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
% D# O" Q# i% q4 u* ]: h4 t(x - a) (x - b) = x^2 – ax – bx + ab5 k* u; P9 w: K3 T
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; Y! m* C( j- I, k  L! Z(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd, H2 ~: q' R: w6 P& C
如此種推，
: O; G2 O! y, ~+ V* Z) h& X  a6 S(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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) i& w1 ]# ]; U4 q; e/ x6 q" S[ 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/ f+ ]1 h. [# A3 K( d) F

Originally posted by Triangel at 2007-4-18 01:26 PM:7 f0 p! W( c  ~/ m. I
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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: `7 F+ h' i- e0 H9 w2 D% b& a[ 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 B2 B# E7 q) F5 J. J4 m5 y% Y咁難既=.="
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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:
% W) i+ a' ?* j9 m4 P- ^* n第一個答中有獎
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: @2 w9 h% W1 v3 U; F" r' j8 A(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:
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3 _2 i# Y! z8 \/ o+ ?& g(x-x)= 0 ，所以答案係0，is it?

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- v2 E; f1 O% X唔似a.math題$ _9 ^  f. A( F) m2 a
似IQ題=.=
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1 R9 i7 A3 C& n* F: V8 M6 S[ 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:$ u; D/ Q8 y; e. Q

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0 e1 n9 g! j0 ](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
! X3 j: H0 S& s- s. ^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6 C6 h" t* Q: d& U

9 v) Z. W3 q! N6 Z[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]