| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
3 K, ^: ?- ?) |/ x& h: C) ~4 }(x - a) (x - b) = x^2 – ax – bx + ab
* j; |6 A$ g7 S; g(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
2 S* b, ]1 t3 I* o$ F( b(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd( c( B7 t3 M* r1 p+ G
如此種推，
/ q1 B" g/ X) N& X% v(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ r1 }. P2 c5 H) R* S1 Y: J

  {6 q3 Q, Y- I7 X# A4 w[ 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:
. v/ H2 ]2 Y+ _% y! V9 h( G( k(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:
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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7 V2 S0 b7 Q' ]4 w5 P& q- G2 kThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
6 ]( A8 \$ n3 v# e) I  _$ _4 w$ E第一個答中有獎
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(x - ...

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0 X% {- M  }9 H( p# I; u5 e% _(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:* [' g9 t9 X5 r. `( I( B
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
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* }/ T0 `1 O1 _! P5 v8 Q$ p3 _[ 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:/ x( o' c1 a7 G# r$ a1 J
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(x-x)= 0 ，所以答案係0，is it?

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9 L: y! `2 s- o  \Bingo~

waikong

我係學校個學生會單張見過- |8 A% x$ X, s1 P$ ]9 n4 M6 l* B& }
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.........5 l( P+ ]: T* u3 f+ J

2 v! D, h" l! l! G+ d1 d# T& \3 A這條問題，貼落吹水版，名副其實& E6 ?. D& j# A+ n+ I1 J
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]