| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a9 P, \3 t& z1 R2 x: B
(x - a) (x - b) = x^2 – ax – bx + ab
0 M  i/ D3 v8 |5 ?(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ ~& ]2 f7 l" ~, N5 n+ P(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd4 k) v6 q: M4 \( u7 o
如此種推，6 ^# v; o# t; z* X3 v/ h
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???4 y7 w! w$ G& W. L
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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:
1 I6 g+ o- y* }6 V2 A! N7 b(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc% D0 M1 h8 }4 Z4 F5 `( q+ x! F

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# _- C0 G1 v' B) H: D* G  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:6 [+ [$ l% A) A5 b
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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* k+ c: E+ k6 ]3 ~% Z. X3 m$ PThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:8 {  J& g1 I! v7 n2 }+ k7 |
第一個答中有獎
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  b. p  b0 k$ g5 g8 F4 b2 h$ _! A(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:/ _1 d. M; R' g/ I: C8 Z
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(x-x)= 0 ，所以答案係0，is it?

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/ s3 i% h$ S( r6 _" ~; P唔似a.math題# V5 C: r; b! z) x
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:
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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.........
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5 \' l5 q6 M. ~+ M& i: |1 F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 ]