| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎2 `9 {  M, V4 I+ t4 {! r  O

. w4 N, ]+ Q- J5 F(x - a) = x - a
. i8 {0 o: A8 j0 F9 F(x - a) (x - b) = x^2 – ax – bx + ab
. `( f; _1 w; @  K6 k- E/ N(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc" p9 F& V, z! {9 _1 Y# f; Z
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
, P0 @3 t6 Z* g* c9 p如此種推，
% U# @5 I' ]8 M(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???0 _5 k( i) y0 |! V% P9 z

2 H* O$ }8 G0 P4 U0 S  V3 u[ 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:
8 H  k) ~# H# f% ]5 C/ U(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:+ ]1 Q/ U6 J' I; k3 y' Q
咁難既=.="0 {' `, d& t$ N4 V
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:# P  G+ ]0 H* [8 i. P
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:4 n) X7 g; A. A8 w& E

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
7 W% i) D/ X+ ?: y* u  q! H似IQ題=.=2 b! T9 m. z  e7 {
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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:+ I) y  Y# ~! d

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% r; D  i4 `  o- v- H) p+ u; \(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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3 H/ X  z4 n( N! {9 T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 ]