| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎$ v7 X$ \/ i( h; s6 f/ W4 I4 k
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(x - a) = x - a8 F# x$ O+ }) B, G6 ?7 R0 |+ l
(x - a) (x - b) = x^2 – ax – bx + ab
# U' L" L, }  ?(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
' M9 u. \+ f# }) B) M( b8 l; X. F( m(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd" ~, k" B$ n0 L# T. M7 _
如此種推，
  l6 [$ K# o/ x, [  `$ }* G(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???8 g- T' |2 _3 b3 F) k8 ~' X' p1 ?4 u' ~
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
4 t; r6 N# H  \1 _/ G(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc% B2 j% k8 g2 Z% ^( C! y2 W- B
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! r, i" \) p3 C0 j# \- w" n[ 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:
# N' }6 }) ~2 E' u- i; }; b# f, M咁難既=.="% t/ Y- r. z+ I# `

! F5 g5 D4 C3 `8 I# K8 i# C5 l  O[ 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:  ], C3 |, F0 m6 F
第一個答中有獎
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(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:- M7 T1 D3 X" g4 c, V, O' a

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$ K( o! G6 p3 Z% d(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
, I1 b6 l& C! f$ \- ~( ~似IQ題=.=: s9 e2 q5 r  M- R& c4 i

5 e# ]# N( A8 l! c! a' @+ _: a! n[ 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:: [3 L, w5 W( n
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(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過
* O! N9 W& l: O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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2 ~% M- u  Q6 U8 K5 o9 z1 C$ \這條問題，貼落吹水版，名副其實
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. r/ `4 Q" S; f0 z) n' G3 I$ J[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]