| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a) T% N* t* {) K; b$ B+ y1 g
(x - a) (x - b) = x^2 – ax – bx + ab
  f/ S' S5 E; `, ~6 J/ k( k(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc* u" v" P! q# w& R$ M3 w
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
1 k% W/ J3 d9 _. |" I如此種推，5 H+ T% |/ `  t/ m
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???; [+ p3 F" ~: l

3 O5 E; e, O% O[ 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* C) t7 z) s9 ~" g1 J

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 B! F- _' r) q2 v5 [(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc/ \5 p' D+ q5 t% V5 N0 e% `

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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:
- T6 u( b1 Z7 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:0 ^0 l1 A; H7 j5 X& {1 W1 [  N
第一個答中有獎
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(x - ...

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9 h2 C  I" V* @(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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: H( g0 A' b7 s/ a(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
8 ^; W+ C8 i# V/ H  ~似IQ題=.=
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, |! Y! u# R( u2 y4 \. @[ 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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, j" C! l; U8 i: g(x-x)= 0 ，所以答案係0，is it?

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8 ?+ Z  q0 _) a2 {$ eBingo~

waikong

我係學校個學生會單張見過5 u8 E+ V, T' W. T/ w
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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1 h% W# O# R3 X0 p( i; R這條問題，貼落吹水版，名副其實( N! S! h: y/ D3 i. ?. V2 D

6 n: e5 B* r; K, `+ R8 p2 F! R+ l[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]