| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎5 ^/ |- i0 p) _, }" p! y: u* @9 R
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(x - a) = x - a
- U( c) w3 [& ^- c) Y(x - a) (x - b) = x^2 – ax – bx + ab7 E7 |: I0 J5 b
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
' H! T( \8 a! J- E/ A(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
0 J% A( J- G8 L) L7 W" Q. A如此種推，6 G2 B# {1 O1 A" |
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???6 m( O9 R9 j; `
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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% X9 ?2 S- O6 M  {& w

Originally posted by Triangel at 2007-4-18 01:26 PM:
! B" J! m* o) ]3 n( h(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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0 V2 v3 z0 j2 I+ J[ 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:
( A$ o2 O/ _8 e: w9 y! H咁難既=.=": r: _: S3 y7 k* W
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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' \0 z$ Y+ w  P7 W0 vThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:7 K! e1 H+ c' H
第一個答中有獎
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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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! S) h- A6 a3 S6 K& v7 n(x-x)= 0 ，所以答案係0，is it?

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  h  P9 G) A3 ?唔似a.math題3 O. A9 j$ P- ?" W
似IQ題=.=
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  \% r5 U5 ^4 g) @) a7 o. M, @[ 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5 P% |  [: R" l% a, k6 n
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.........' p5 A" e7 f: S+ c3 \( n) T$ g8 W

. V, A; d1 L  S( b4 X/ s這條問題，貼落吹水版，名副其實
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* X7 ^; T5 \* ?4 [1 e[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]