| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎3 R5 n, v  _* V( a4 U9 i
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(x - a) = x - a4 T, A* K1 x4 k- W
(x - a) (x - b) = x^2 – ax – bx + ab  ?% _( D6 G4 ~1 {& ]: T& C8 H
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# E# P1 Q7 m* H(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd0 v: K* A* x! z( m! |/ C
如此種推，6 h2 b# j: U8 M2 x, d; t% o
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???/ `' y4 q, B$ O

( b5 R7 r: D. l8 l7 K[ 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0 e: Q, g  o& y

Originally posted by Triangel at 2007-4-18 01:26 PM:1 \8 c% [: u6 ]& ?
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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7 t* V0 F/ @) u+ `; W[ 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:4 P- T/ B5 m, W( H6 h
咁難既=.="' Z( n  z0 U- k: ?( G7 I

$ a% x9 ]6 r0 U5 C5 F[ 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:/ X" [2 f" {4 ~4 x% r1 ]$ F
第一個答中有獎; X' S2 x7 W3 M+ b! A1 @" Y

+ N/ e/ ^  `* H0 l2 ~(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:  I) l3 B& `% H
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$ S8 X9 ^2 X% {$ V* y3 b(x-x)= 0 ，所以答案係0，is it?

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0 d; `% e& ?/ z" |3 ^6 ?' }8 o唔似a.math題
# U5 o% j# \# Q6 S- r* T似IQ題=.=! ^# W+ v& p2 b5 U/ w

  Z3 U) L* u' M2 [[ 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:
( a4 I& e8 G7 ]) i# ~6 P2 z% F$ k
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: m7 u4 H% |* [0 V' K(x-x)= 0 ，所以答案係0，is it?

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6 J5 \9 o0 e; n/ qBingo~

waikong

我係學校個學生會單張見過
4 `  L: G: U' S: Z, A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.........3 W4 W( W7 [- `

6 ]6 b9 h* w/ f( g0 X這條問題，貼落吹水版，名副其實/ N- x. ^/ S6 g+ U# [

3 \& \, h$ w$ V5 q[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]