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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" ~- P& t$ V4 C

(x - a) = x - a
(x - a) (x - b) = x^2 – ax – bx + ab$ m* B% L2 V8 Z3 K$ v5 P& e! S
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc$ P" J* n+ W y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd& z1 H8 p3 a( G2 C$ A. V0 D
如此種推，
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' N! V7 c4 |- I( E* H/ |% a
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[ 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:: H7 r) I7 b* L+ k# E
(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:
) W7 S5 Z) F$ l4 i, _& C0 x1 I: e咁難既=.="; B, T1 d7 H0 }5 o# ?% c5 i
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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

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:+ Z" n& _6 h. [* m. \) s2 G6 {
第一個答中有獎! R6 _: z; n; [8 I$ T( E3 `
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(x - ...

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(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:5 P9 `3 W! C8 Y! i5 n( I. x1 D: g

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/ l7 D0 Z0 b/ b1 Q: E(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
似IQ題=.=( j+ B) G0 u( |* b

[ 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:" J8 B: Y3 f8 z" H3 Z
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(x-x)= 0 ，所以答案係0，is it?

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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

[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]

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