| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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, A3 \7 C) T/ j(x - a) = x - a
( W; o; m% r- d( ](x - a) (x - b) = x^2 – ax – bx + ab
6 z0 N2 N4 y" h(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc5 T  ]- D( D& Y( o' A
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd% g( E. M$ Z5 K+ X
如此種推，
3 n- _; v6 Q- c3 ~. C2 S, X3 p(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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" m- E' O- q, z" K2 D' 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:0 ~0 O2 ~+ T5 c7 R+ e% r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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9 Z7 t/ J5 S! @% s) Y[ 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:. E! K4 _6 \9 L
咁難既=.=": v# J9 k5 S% i! n6 E# V  d

7 N! T3 U. ?  S1 _6 f[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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6 n1 t  `( E$ UThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
, V5 w' }( D( }( }: w. A( y第一個答中有獎5 ~6 ?2 @; t1 G+ C& C
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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:
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! H7 t* N) \  o" S% |; A* A(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題4 ?0 s# `0 L; C. i0 |1 V9 h2 {
似IQ題=.=
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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:+ |9 K2 a& M! S# W( l

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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
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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.........0 v+ I. x- B7 u" O9 M
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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 ]