| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
$ r$ F$ P$ `; e% k(x - a) (x - b) = x^2 – ax – bx + ab- v1 e+ f3 [1 P/ H; ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc; B# i. c% x# y& n
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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(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% G5 S; G2 j& [* m

Originally posted by Triangel at 2007-4-18 01:26 PM:9 c0 F+ x! z( `- P' z% ?1 c
(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:, ]% L$ ]9 J, m8 c" g) G. w/ ?
咁難既=.="( l: p* W$ o( P

1 b" f8 m# i  S. e7 i- a" K[ 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:
; j8 @; L5 {, ~) O. o0 U- i8 h第一個答中有獎% ^2 W$ i2 T$ N
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(x - ...

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4 V& H; w& s% q(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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  f/ @% e! \* s3 e(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
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) O+ M& P* W& x6 I) \  C' u5 R: O[ 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% T/ v+ u! q5 ]0 P
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.........- m7 x9 g: |3 p0 G. [
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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 ]