| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
5 k8 D0 c( T8 |(x - a) (x - b) = x^2 – ax – bx + ab; a6 z7 J7 y" [: s4 V
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 {. V1 D9 I; d$ j* K2 y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
5 R8 E9 x" i+ S& M如此種推，
, |4 h5 Z4 N  M(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:- v* `/ H4 a) d9 ~% o) R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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9 b+ j6 x& `, V# N[ 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 }1 k+ C* N+ z! t2 J5 n+ G咁難既=.="/ P. u! [& N3 |( @
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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:" H5 U9 l" Y+ w
第一個答中有獎; B' b* {+ X3 z% v8 Y% v
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(x - ...

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" t6 X+ p1 M/ y# c3 u. P/ \+ v(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:; S" O; J# s' r$ S1 r; n* V

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題! _, H9 U+ L/ |) r$ r
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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$ b, ^4 Y: k$ k2 }$ ?
) K9 e6 n- W4 z& c, t; F9 ]' l(x-x)= 0 ，所以答案係0，is it?

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  o+ ]0 o" k9 f! R) zBingo~

waikong

我係學校個學生會單張見過
- }$ Y. E3 U/ A: T7 k( m$ i1 R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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0 c- O% o$ U; R+ E5 P6 T8 e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 ]