| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a- E; Y/ [  E7 j; v
(x - a) (x - b) = x^2 – ax – bx + ab
# Q% t& @5 @* s% X(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
' F1 J, O; P2 _  u% Z2 Y* H; o(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
% E( ~" l& L2 U) n如此種推，
4 v3 v( r4 N& G(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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* x/ r( s1 K+ `% l- m[ 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:, l) }, \0 i. }/ |8 Z  L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc; m) s9 @0 m, m. Z$ E6 t
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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:
6 |9 H+ W4 n, R% I) I+ I咁難既=.="; Y. ^1 D9 ?1 e$ y) h% I

& Q/ A5 _: H8 T6 {1 L6 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:
' R6 z  C* M) Y/ a! t* o5 z) H* {第一個答中有獎
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(x - ...

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  k7 _# K8 H6 w9 |5 c(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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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
# w. O- Z- c' `+ f( ?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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* J% R. G- Q, g! vBingo~

waikong

我係學校個學生會單張見過
+ U) }* d, i. {. t+ R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.........
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; `- O, I+ I4 Q1 \* _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 ]