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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1 G5 l& J; R$ a/ k# v

(x - a) = x - a/ M( c8 y; \' x8 c" u6 g8 u% O( Z
(x - a) (x - b) = x^2 – ax – bx + ab4 @! h' ]+ E. W4 R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc/ M1 w# h% W6 c: I% }) K
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
如此種推，) X  I# }5 d& F2 r5 q' F! d: a
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???7 x1 ^  N* X0 Q) {! y% C
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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, X/ p9 x* T/ [& X9 z. s+ F3 ?

Originally posted by Triangel at 2007-4-18 01:26 PM:
- s+ c0 C( w7 A- M% k5 e(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc6 T& ~, D% i W5 \- S4 g0 ?$ b
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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:
' X7 F* S8 q( u8 x" ]+ i6 X咁難既=.="% _0 F' g5 P5 T. `9 V

- R$ `) M/ s) O2 |3 E[ 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:& K3 g6 L* }! M) R; P
第一個答中有獎
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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: Y* _5 R" s6 p" _9 L2 c1 K& _

' k+ d$ ?( o8 _: E, f4 V6 @( r/ a7 O u# _3 |) g0 [
(x-x)= 0 ，所以答案係0，is it?

唔似a.math題* Q( N( ^! K3 c' `
似IQ題=.=

[ 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:
, C- L5 A0 f0 {+ K) ]
+ H; ^. c- S+ b o
% r. Q6 F1 h7 [, l* o(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........./ M5 {/ N& V! C7 I- p [8 n
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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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