| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎. p% E* r) _, F+ v
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(x - a) = x - a
( ]3 ]) l! ]2 Q( _+ [9 w(x - a) (x - b) = x^2 – ax – bx + ab7 I+ ?$ o( f3 `1 F' ?+ K3 h
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 r1 T: J+ j& j, h2 p) ?
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
! |5 e! l  Q, ~* g如此種推，) d* y1 O( ]9 i2 p
(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9 p, b8 c$ C- Z6 a

Originally posted by Triangel at 2007-4-18 01:26 PM:9 Q8 S2 u! R# i3 ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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& {- T$ t3 [8 B+ p3 w: _. m[ 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:! y1 P+ j7 f) b! C
咁難既=.="9 j; L2 H, \; |* ~7 L

9 y4 D, o) u4 B6 Q" H0 c0 L* ~[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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& L4 B8 i& _% D% E6 Z8 L  j) @2 LThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:4 U) I; s2 a$ k# P9 [# t
第一個答中有獎# B# a: N' m9 l

8 B# U7 \" H& g% @& Y7 N(x - ...

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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:; a$ l: Q6 }& S, Y' |0 d

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4 {# S/ |( ^0 P7 t$ Y0 V(x-x)= 0 ，所以答案係0，is it?

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  p5 T( x7 R  V7 Y7 V- M- c: b0 L2 \( v0 p* J
唔似a.math題* _7 S5 o  K5 F: C# q+ D
似IQ題=.=( N# W, `0 P- ?) Q6 h

3 E& U* j- z. H1 |  t+ [3 o: y[ 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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: e8 m5 u' n* G7 _5 [0 X& f& K( I0 U' s& @& |; e8 v% N9 Z% i
(x-x)= 0 ，所以答案係0，is it?

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4 b$ h9 {5 O; b  pBingo~

waikong

我係學校個學生會單張見過
# u3 o& @. M' `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.........9 ]; q! J* e  N3 Z# {

4 v' s0 W) _( j! I7 f$ b: N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 ]