| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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0 a8 W) B" l+ ^(x - a) = x - a2 B0 E/ M+ u; ]0 G" |7 W6 F
(x - a) (x - b) = x^2 – ax – bx + ab" I# Y# B/ {- q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. v. L) G  X  _- u1 l: T. A(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
$ i- U- N) i/ u3 C% d: |3 A如此種推，
' K; P" T9 F- s" [(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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% s, q3 Y, W+ F8 I/ ]5 U  ?4 x[ 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. X, k- {: a2 Q; r

Originally posted by Triangel at 2007-4-18 01:26 PM:
' y6 ?0 O, @7 |4 s(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:# `1 Y# G/ R: {5 d
咁難既=.="$ f  z& q  c# ^& d9 o" b  u
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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:1 |4 ^) d: B' ~- e2 p
第一個答中有獎
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( s$ @2 ~/ ]# g( o+ f(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:& Y2 U# U  s6 Z
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題# _1 U' h9 f& `) S0 P! G. ?& K
似IQ題=.=
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[ 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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( n3 K$ R7 f  j* j6 ]: a2 ]; Z1 v+ tBingo~

waikong

我係學校個學生會單張見過2 H( V/ b; _( x0 T7 a0 i
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.........
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  w; U. v/ _' M0 w5 m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 ]