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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" b4 p$ n8 L7 T# a3 K
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(x - a) = x - a
(x - a) (x - b) = x^2 – ax – bx + ab
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd  W' g9 E& R/ m" h8 I" e" d
如此種推，- M8 z! y# }, Z& y' I' i
(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 ]

作者: 大大 時間: 2007-4-18 01:41 PM

點解你個問題好似有d問題6 u+ d& r$ U1 p+ _$ G6 F# A

Originally posted by Triangel at 2007-4-18 01:26 PM:
- G8 W7 y3 `) c8 j9 M6 m(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc3 D0 n$ p% i# f- r5 h7 \$ y4 r
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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:
; P3 D6 T a! E( H, N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

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:& p; _4 o2 j0 q3 o' E
第一個答中有獎' z5 s: y8 p3 o% T3 u7 ]( m
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(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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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題- C; |9 I$ Z0 C3 s! ~
似IQ題=.=' S) |. g1 l3 N) ~. B
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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:+ l& q( o4 i6 S' j7 `

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( W+ P" \. c" ]2 i1 v(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

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.........: _( L& C7 N/ p, P& k; D0 @* y

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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