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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

(x - a) = x - a2 R: A* |1 }( J* E! o' P
(x - a) (x - b) = x^2 – ax – bx + ab! E, c: B6 `% B; p, v! c
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc6 U; {* g0 }, r0 ]$ d ?$ L
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd# e# c) O) x3 B' a2 S' n/ ^
如此種推，# ^3 m0 P+ r- p' R, 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+ P5 h w' `2 p& G1 {: f; z. I @$ z0 @

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 _7 g: R! @7 y7 P5 `4 ]+ P(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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( k  b+ _! [+ v8 j' N9 f3 R

$ d+ ` f9 N& b; {% J

[ 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:# }3 y; {; k$ R% I' v' N
咁難既=.="
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) \9 w2 s/ q& Z! N5 f% N F[ 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:
# u+ `( h* L8 m7 v# C. a" }3 q5 P第一個答中有獎0 P' a& V7 ?' \- l+ T& A
3 `: @6 ~( N8 P1 s- E9 g" r- h
(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:. `- b$ h7 l+ i) B* i$ h3 q3 d2 q' v
7 g* _- t# W5 a
, A; v% O+ h0 L; Q' ^4 U/ `. d
(x-x)= 0 ，所以答案係0，is it?

% K! G( a. u' c7 [7 S, s

( d7 @# I; \8 G5 `2 \
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唔似a.math題" W U! }6 ]) z4 W5 [8 N. c4 p) r4 S
似IQ題=.=6 c0 C1 q" o P

[ 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:! `8 V6 r0 k% ~- w0 m! G* \

9 ?& e0 V2 U# T" v4 g& O% U. 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.........

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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