| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎5 t! Q0 \* _5 d* s; g
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(x - a) = x - a
: {9 L( S. O; {' a& Q. W* `, f; e(x - a) (x - b) = x^2 – ax – bx + ab9 g- a% p+ p( ~/ R$ G. ^! a5 X) x1 |; F
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
5 G  z- o( ]1 M  v(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
' U& L+ H% A' g' @如此種推，$ u* f- K+ l5 h' N+ \1 \- J
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???: C( b2 S: P* B' p. F

: X# F1 X8 c, u7 w[ 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$ l; d4 |3 S; K/ W

Originally posted by Triangel at 2007-4-18 01:26 PM:- `$ x% T, q0 M) t& M0 {; {
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc7 H  h. q' s# @5 V% Q6 {8 S! N

  g) ^- j! ^. l% a

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; ?/ @+ P1 @& T/ @7 M. G4 r" r[ 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:
& W* s! o0 Y3 O& f$ s咁難既=.="3 {+ j' p* z% |$ l, T  R
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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:; J; ]6 k7 Y0 N$ k9 M, C! N
第一個答中有獎
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(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:
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6 c9 `* |4 k7 s$ M- S& b/ ](x-x)= 0 ，所以答案係0，is it?

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. ?: |9 A# @2 I5 c+ w唔似a.math題# H" q1 L+ O% U% y
似IQ題=.=' J& M# W* D9 r, S9 V

9 ]; V, Q$ R) z# k[ 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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(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過/ z! G; z* @; F
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.........: H; ^- t( K( m" U
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這條問題，貼落吹水版，名副其實3 y# s$ r8 t7 |$ A1 m2 O. w
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]