| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎8 c( V) _( [3 V) [0 C6 y, y/ R
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(x - a) = x - a6 S; a2 O- |1 C7 K- `! q
(x - a) (x - b) = x^2 – ax – bx + ab
  U' X# r  T% u& X) D) E5 V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc- L6 d% U* @5 w7 J. W' N3 l# _
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
' b4 U  c2 i8 n2 L% j如此種推，
2 e1 W! c( Y+ p5 a(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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% Q: F& }. V+ ^4 h[ 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:
% G; ]" K, h5 r% f; I( {(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc8 |  L% ~9 D9 d! J3 m. u4 v

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3 \( _* r7 q; @: D7 u[ 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:" U8 f2 A! v/ M" O8 g
咁難既=.="4 ~2 q% F. |% P
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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, ~8 [* o$ i3 g- Q6 U* a6 j5 gThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
& c% T+ W9 q/ n2 H6 S第一個答中有獎$ P* G5 t4 k# }( y! r
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(x - ...

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/ k( J1 W( \' L(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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  Q7 q1 S% s2 Y" \9 y9 d$ g4 `1 d唔似a.math題; L& m( w- ^* ]3 U+ H, O
似IQ題=.=/ M! C, N' J7 I8 N9 V, |
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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:: u3 ^- f6 W. S* R
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  ?- i: o) }8 O0 ?! `(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
0 r# K$ e6 R8 Y  m. m, Z+ h1 C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 R0 j1 u* p1 y) H; C4 A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 ]