| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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8 w+ |3 K: e1 J. N9 @/ V(x - a) = x - a
  l# M) B# H# _(x - a) (x - b) = x^2 – ax – bx + ab
* b! D# R6 u6 L- F  J4 Z3 H- a(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# E5 P* a; n% u$ D6 p$ H(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
1 N9 V; c: o% L. _% D  X3 \& `如此種推，
& F) W+ I( z4 R  `$ k(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# I* }5 v" ^  K% W1 [' P5 i; Z' a

Originally posted by Triangel at 2007-4-18 01:26 PM:
6 X. V5 y' a2 o5 ?  f1 K1 ~  l(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, K* ?1 o. @/ [- q  Z

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[ 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:
+ Z" O' r7 ^  j# E: B" `2 L咁難既=.="$ ~, ~* Y1 f& Z2 W' b' q
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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:
- N! i3 }" h' [3 i' l; }; F第一個答中有獎; J. m; ]0 F' s- U4 e
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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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8 T3 O0 ^, @; ]; y4 x: Z  ?2 H(x-x)= 0 ，所以答案係0，is it?

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/ Y4 w+ x" p; p& U  G& b% L4 O唔似a.math題  o1 f8 F2 V; ^. F
似IQ題=.=1 E# j" w5 ?% ~- U# M8 C  A$ b

$ c  X$ X5 C) ^# 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:8 t3 I  O5 U1 Z, m+ q
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  Z! b. y4 m% H( }(x-x)= 0 ，所以答案係0，is it?

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6 y$ u5 c* t, `% u( n* y" M; j1 SBingo~

waikong

我係學校個學生會單張見過
5 T* r) f2 Y7 H. Y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........., P& f* w6 f$ d  t* n
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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 ]