| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎! a- k' w; j3 |/ W: b8 r
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(x - a) = x - a2 U8 N. o5 R0 l% @. Y' V# j+ d
(x - a) (x - b) = x^2 – ax – bx + ab, u8 l- l9 [. C* Z3 O6 T2 u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
% h: F" t) S: V& n/ |(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
  a1 i. e. G" @如此種推，# Y& L0 ^& [, x& b) \$ Y% \$ T
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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( p) `2 R. N) E& m0 ^5 d[ 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:1 A* ?7 ~" a' m
(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:
' g7 I3 q  W. l# J咁難既=.="
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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:
9 B: E* I) d. W* H! ^第一個答中有獎
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(x - ...

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, E0 q3 [( j) r(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:% p/ D5 R  d" h  _9 @% A

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(x-x)= 0 ，所以答案係0，is it?

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& W" {3 i- `0 S# g; Z* V" @) w唔似a.math題
- @; ], Y/ X/ S似IQ題=.=) D. ^% x) X% J& ?* {' H
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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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/ q7 b" Q9 s& X. I5 K/ w/ e(x-x)= 0 ，所以答案係0，is it?

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7 j3 |' {6 W% O$ I3 s6 u! T: ZBingo~

waikong

我係學校個學生會單張見過! `$ }7 P# `8 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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* W$ m. h6 d, U) K這條問題，貼落吹水版，名副其實
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2 H6 \# {0 f+ _" P1 `[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]