| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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& ]* s5 ~3 i8 J- h  t& S& W(x - a) = x - a" U) r7 P. p/ Z2 T$ |: N/ ~
(x - a) (x - b) = x^2 – ax – bx + ab
, A( u3 O( M+ P0 v2 {! E  O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: w7 q6 _! P9 u% ^+ P. J' j(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
! {+ T" _8 Q4 V6 {. r6 S/ w* N如此種推，
2 c( k" D  o2 U& l: u0 `  Z(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 m# G# u9 A% t0 _

; L& l2 @- y  D% H  b[ 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:5 @! [$ s) S  ]3 B! v' }$ ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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8 |0 N+ ?  U$ d/ N+ g[ 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:3 e, [  A  _; O9 O* B( f3 w
咁難既=.="# I9 z0 n% Z7 b- P1 C& a2 m/ H

# d- T6 I. T/ g: _3 W  f[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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, p% N8 I6 `  G; t" CThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
; s8 Z4 a$ O1 K第一個答中有獎% @0 a7 K6 J) s$ S) f
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(x - ...

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+ e$ I% X& F' ^2 t(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:3 G" g3 ]: c6 H/ W

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題: G# ~4 A, ^, r% V# o
似IQ題=.=
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% @1 @8 Y, Z/ ?( I- \[ 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:4 n7 ^* c  J, [8 {( V
  O5 `  ]5 ]3 w2 U0 _8 _
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(x-x)= 0 ，所以答案係0，is it?

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* f9 w! J+ _; B% Z- i, iBingo~

waikong

我係學校個學生會單張見過' s% ^8 Q" ~! m& B: T
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.........# R+ `; w- k2 ], I+ ]' l0 P

+ P* O* a+ U/ ]& z+ a  A+ c% S這條問題，貼落吹水版，名副其實
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- U$ x* ?5 \8 Z, d[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]