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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* J5 W; A2 [& q4 _: Q5 m8 {
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(x - a) = x - a" F' \6 V2 X Z. }6 r
(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: W; D+ f1 Q& o! U; t
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
如此種推，, l& m" l, Z1 C$ @* T0 V% ^" z
(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. V+ [ c; Z' ~' g

Originally posted by Triangel at 2007-4-18 01:26 PM:2 l8 }- K* [& C# F* \# F; {/ e: `. g0 F
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc$ A0 H7 g: A8 o7 |# j
+ }# l) b5 t6 |8 n0 t% m# R

[ 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:
g/ y* N7 l$ t: w咁難既=.="( f* s4 k. a$ T! q( H/ \( w
: m( e ^* O; n; {- y- ^- M' p
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

8 `: v: Q4 m) b. w! Q' \- g

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:4 o. c$ W. [+ B% }! |
第一個答中有獎
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& m# f9 H; }: Y3 d$ J& y: `2 n& `(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:6 u8 p* z' {, `6 k7 y: o8 M

8 m( R: L2 [+ E0 c: e
1 `1 }6 J1 ?' E0 [/ p7 L4 s; N! X(x-x)= 0 ，所以答案係0，is it?

唔似a.math題. i M* Z( y6 h+ C( e3 _( I3 u
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:: ^6 Z }$ _' u, |6 T
7 i, N, O% O( H* L

0 q6 I \8 p$ `' T3 r) j$ a(x-x)= 0 ，所以答案係0，is it?

Bingo~

作者: waikong 時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過

7 }6 v5 [2 i* m/ t; L
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.........7 n6 C: A2 L( [

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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