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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* w/ @% i% x2 e$ d, O0 `7 ?2 C# l
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(x - a) = x - a
(x - a) (x - b) = x^2 – ax – bx + ab. h  J5 t) e3 }' c: [. H7 O9 w3 _
(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% |; b, `8 ^' ?# V
如此種推，" ]  u% o( [0 R  h8 |$ t* T
(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, I: e/ d; W' l; O

Originally posted by Triangel at 2007-4-18 01:26 PM:
) M" T- J8 @, ]" S7 N(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 J2 l# Q, ?* w0 J. @$ y3 R* t% w2 _2 Q
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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:
2 G7 ^; @- p2 y/ X( P) N2 B S咁難既=.=" C+ M/ o; h' F# Q8 H

8 f7 ?; m- J& ?+ e* H" i; L: B3 }[ 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:/ L' \3 b6 h% e( h" ?0 G- ^0 o
第一個答中有獎
e7 f% T4 @4 H6 e& M
5 P2 I0 M/ Q* n1 x& H9 m(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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! {7 G+ `* O5 z: n2 f+ U/ y2 p(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
似IQ題=.=- R4 x$ I9 F- z C' r6 ]1 ]
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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:
/ s+ j# S0 f- j0 }0 t: x5 T
1 h) H- j9 _, {: f L2 {) x
& F4 y; [' y9 M(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.........) O$ B/ K. f, B* p% m* E

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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