| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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% T# \5 C9 e+ [( G& s(x - a) = x - a
. o& N: R! W# ?5 Y/ b8 R(x - a) (x - b) = x^2 – ax – bx + ab
6 a( m2 G) p8 h8 T) U5 w(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 Y6 E- ]  S) a# c+ W
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
/ d7 p/ F/ h" N! }& q; M, n如此種推，
; `) ~4 e# k  N8 U# c(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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/ U% T' `8 ]: E% L" h7 O2 L+ Q+ t[ 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3 ?0 R, }; r0 f' _$ M& y/ ]

Originally posted by Triangel at 2007-4-18 01:26 PM:5 B' y& K6 y& i+ U. x* ?
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc6 p% v5 i; b8 [+ m% ?6 K
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) b% |2 F& M: c. V) k[ 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:
2 G2 O5 Y% W! Q' N! i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:
6 q! s) H, A0 u2 W# ~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:* \  o% q% n  z1 c4 D  g

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(x-x)= 0 ，所以答案係0，is it?

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$ L/ S3 b/ Q2 L) A4 L' a- R6 X# V  @: G& y; E4 D* ]4 e
唔似a.math題
  @  b1 [' T! C, H似IQ題=.=( H* w0 z" n  D$ s) {0 _, k
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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  g! F. @% [% u% o$ y
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 t; ]. t( U- l7 A這條問題，貼落吹水版，名副其實% H  q' T+ [. [! P) J

7 R8 h5 p# [# F[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]