| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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7 L& I4 O- V6 `8 G8 N- }(x - a) = x - a- f' o  z& f7 W( y. H6 M
(x - a) (x - b) = x^2 – ax – bx + ab
& [& Z" R/ ?6 D5 S(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc* u' c4 k, J& C
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd. F: |# {  T, ]
如此種推，
. n  g+ ^' n" d5 _+ v(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???+ f( c5 Q6 e4 o, g/ |4 v

2 J: p3 x/ {; y& b5 B[ 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:
- w- I5 N( x  P- p(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ 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:$ L5 e! G$ @& ]3 q2 o$ z* v
咁難既=.="4 {6 f9 T0 B- I% G+ y9 ~$ F" [

, v/ p1 X8 g' N! A" P  o+ J; B[ 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:" h6 V4 @* ]* j6 E& _- A$ M
第一個答中有獎* R# s/ p( E$ G$ q' J+ n. b( S- F! o4 W
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(x - ...

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! Q& g1 h) z5 O1 i; L: w! X; D(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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唔似a.math題
  K& h$ E1 h2 C4 R7 x0 t$ D似IQ題=.=3 e  b& Q0 v7 h6 t: m( v- X

7 y0 ]( A+ b( n1 U5 ][ 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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. g' O0 W9 h  `9 p' m: jBingo~

waikong

我係學校個學生會單張見過9 |$ u8 I2 W0 [3 n2 Z' p! \
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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0 r3 z. A! ]! A/ v這條問題，貼落吹水版，名副其實* t& Y3 p! A4 r3 C' K

( D0 x# a/ O# Z[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]