| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
% M0 z+ Z9 Y/ ]  M; s5 j(x - a) (x - b) = x^2 – ax – bx + ab
. {  ]* Q" R, F* Q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
8 s1 f$ I, [+ X(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2 T/ @" H- y1 |
如此種推，
5 I: M# _0 ]% x& K. M(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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[ 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:% d: ?7 [9 ]: u) B. j
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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) \& C% b4 d1 S$ D3 {# R$ V[ 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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( l1 J0 U+ L5 a[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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0 A+ x$ k  h( h) Y! eThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
3 F: \8 w* ?) {7 M2 @3 n第一個答中有獎
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; U% H+ _/ d  J9 A2 [% \$ d(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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( H5 G: v4 U0 O0 R' n: \(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題# f4 \/ z$ v- ?5 r8 q. P/ w6 y
似IQ題=.=: u1 p1 s3 |) N( [
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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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* C6 q$ |4 U: X7 m0 k/ @+ M(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.........
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; K% A  C) @, Z! |0 u" y這條問題，貼落吹水版，名副其實9 t- v6 N' N( G" E5 R: w& x

0 s7 p( s2 s- p6 n: k4 |6 B/ k[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]