| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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/ c6 N/ @7 N( l$ d(x - a) = x - a* ?$ E% V( z) ]) f2 o& ^
(x - a) (x - b) = x^2 – ax – bx + ab
8 U) e3 _& X* d. r$ V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
) b4 w& b) l# [( q9 R(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd5 U8 ]+ _3 s: M: m) ~# v
如此種推，7 z* C( t% s% o) W
(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:0 T# M. g3 _0 C' x" C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc! q" @8 x7 P& A( o" j2 z! ?
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: A% y+ l5 k: m6 X& ^# D$ ^  S" q6 c9 ~[ 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:9 a) H7 e* n; \) d' u* Z
咁難既=.="7 Z( L$ @* N4 M' x! q

" u8 v2 \- S6 R4 s[ 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:: w+ k9 @9 ?5 y& h  S! T. K% A+ D
第一個答中有獎
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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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% Q, T3 j- U" f) ?- w(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
8 h) Z1 t) X  o6 F1 `: ]$ V# S4 s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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# z+ x5 P2 q. ~- q* WBingo~

waikong

我係學校個學生會單張見過- `" E5 j# A4 E2 J
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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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 ]