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標題: | TriTri | A-Math 加分題 | [打印本頁]

作者: Triangel 時間: 2007-4-18 01:26 PM 標題: | TriTri | A-Math 加分題 |

第一個答中有獎
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(x - a) = x - a% O1 {+ z3 J- }' w0 D9 l  B' F" V
(x - a) (x - b) = x^2 – ax – bx + ab# g/ M- t% q& [4 S; S- b
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc2 \, I* f" F! h2 o
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
如此種推，0 P, P8 A& u3 J8 m
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???

[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

作者: 大大 時間: 2007-4-18 01:41 PM

點解你個問題好似有d問題

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ M# y! P( r6 y: I' @/ `(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 ]

作者: Triangel 時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:
/ G8 M7 a- y) J咁難既=.="
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2 q# z7 K6 E$ O4 R" d" {2 x" {" K[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

Thanks! 更正啦

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:) f Y% a3 B+ d0 l1 P4 e& l
第一個答中有獎
, u* F. X" W+ S `0 V0 \5 v
; q2 D( @/ o+ ^! g(x - ...

(x-x)= 0 ，所以答案係0，is it?

作者: 大大 時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:
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1 {3 p: b( k O a(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題. z; r/ t2 O) A- \' D1 R- x
似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

作者: Triangel 時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:& Y8 b. ?' o% p& o7 l
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; u" X p6 b3 g g& b(x-x)= 0 ，所以答案係0，is it?

Bingo~

作者: waikong 時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過

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諗左一陣先諗到

作者: playbr2 時間: 2007-4-18 04:00 PM

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

作者: karen0123 時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0.........

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 ]

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