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標題: | TriTri | A-Math 加分題 | [打印本頁]
作者: Triangel    時間: 2007-4-18 01:26 PM     標題: | TriTri | A-Math 加分題 |

第一個答中有獎; o2 L. Z) x: [4 H

7 T- T9 u- S0 z' X" G) e(x - a) = x - a! p, |; O6 A( w; _0 p$ L5 U
(x - a) (x - b) = x^2 – ax – bx + ab8 b$ M# V4 P% z9 p: f
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: S& b/ F$ A/ K/ ]( ?(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2 M' R6 b: a" [4 K! h4 m
如此種推，
$ J# S" o0 o/ Y! y(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' g% ~* N, Y. a6 D9 s: X

0 X, P4 ^+ ]8 l0 Z- w7 w% X: ][ Last edited by Triangel on 2007-4-18 at 01:52 PM ]
作者: 大大    時間: 2007-4-18 01:41 PM

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:7 |1 ~$ [3 C" o6 |; V& Y, f; D
(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 ]
作者: Triangel    時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:9 B  r. @2 d- C
咁難既=.="' m8 ^8 H/ a* z8 U* g
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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
作者: littlenic    時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:$ K, g) f5 @4 N7 r* q
第一個答中有獎
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6 D: i: W9 U5 Q1 A# z: c: ]+ v# ?(x - ...
1 b0 x' t1 R2 n( c/ P' e, n6 T  \( ]4 h  ^6 D3 E" {
(x-x)= 0 ，所以答案係0，is it?
作者: 大大    時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:
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1 |/ M* q: C9 n! `- Z0 r. l9 N. i' U4 V! a  n1 O% W
(x-x)= 0 ，所以答案係0，is it?
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) \8 n+ L! k9 U5 T) e8 ]唔似a.math題
& E: ?: j2 @9 h似IQ題=.=4 G( b" T0 R1 c) o$ S  o+ f$ U
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]
作者: Triangel    時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:1 ]& I0 R* _  p% V/ P. w

; c+ Z8 V+ Q8 U7 {/ A* K* `7 {; l0 H7 ?7 R" D
(x-x)= 0 ，所以答案係0，is it?
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) s3 x) x$ M+ S. z+ @% h# BBingo~
作者: waikong    時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過
9 b. _1 O- |' N6 C4 @諗左一陣先諗到
作者: playbr2    時間: 2007-4-18 04:00 PM

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
作者: karen0123    時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0.........$ U  e, C4 |& H" @. q6 Y9 ^

8 ]) l2 ?, E  ]  h$ ~' h這條問題，貼落吹水版，名副其實% ?8 e; U4 c7 _

/ d/ {6 R( r2 l6 _; ?) z[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]



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