| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎- T; q+ H$ Z6 H; T
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(x - a) = x - a
* g/ S/ d( O( f( e2 p8 r(x - a) (x - b) = x^2 – ax – bx + ab4 Q+ L4 J" [  X/ L- R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
) e5 \0 a+ x2 D: i(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* b. J0 Y7 ^, h( X/ ~. u+ E8 c% o0 o3 [如此種推，
7 r! N( G$ S: J3 J4 u  t' x9 |(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???8 j+ T2 [, X6 \
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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$ Y6 f6 y# C. J+ z) s8 C; W

Originally posted by Triangel at 2007-4-18 01:26 PM:; l: Y+ s% z' e8 q- W6 J
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc2 b4 c. B8 l: b

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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:
7 p; s7 c! a0 i! s7 a* _咁難既=.="
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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 a6 ^- R6 u  D. F5 x. W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:$ ~' s' v4 [# F6 t+ j

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題4 g" ^; U8 l+ ~/ w& m2 o, U4 o3 |7 U
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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Bingo~

waikong

我係學校個學生會單張見過
9 o; H! ^9 l5 i: 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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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 ]