| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 C  u, d: h+ x
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(x - a) = x - a
( f. \2 k- N) L: @(x - a) (x - b) = x^2 – ax – bx + ab2 s$ U4 j& Q+ r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 y0 R9 V& d: Y' F1 d
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd" m7 w7 E! J1 i% y, T3 D! p5 v
如此種推，! y$ q" y' r5 |# B" |! O
(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0 h9 N; t7 m3 ^& N

Originally posted by Triangel at 2007-4-18 01:26 PM:
% A2 {* E' i+ M6 x(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 R4 M9 x  E8 S+ Y3 |
咁難既=.="
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, W! ?8 o+ Y2 H; i. I$ @% V[ 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:
9 F8 X' x3 x( y: P0 K- c8 I8 @* [第一個答中有獎- R0 u/ i( X- ?4 F
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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:9 M# Q. s8 u+ {$ D& P$ L2 p, G5 {

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題6 z$ q# T5 C1 B6 E' T
似IQ題=.=
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# ]3 d# }% U+ V! {& _  t[ 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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4 I* S4 f8 e1 w$ I5 ^2 b; `, ?) I(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 {. R6 ]# q4 M: x, m0 E; O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 ]