| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎9 O- }5 b6 G9 M! s

& s& ~9 [8 p/ Z0 w4 W3 O9 `(x - a) = x - a
3 N) {0 p+ ]" g8 n(x - a) (x - b) = x^2 – ax – bx + ab: G% _" `( ?& K# p7 N; V+ a/ \6 C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
+ F( e' G9 V. B1 j(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
( S7 R% l- z: O: V: i3 g如此種推，% N& g. V5 Q( _# N: ~1 f6 P
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ {4 u. X8 ~1 A# k" ]
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題; x/ O/ E( J; }: q- g

Originally posted by Triangel at 2007-4-18 01:26 PM:( g& ]4 {4 Z& f
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:
( ~8 V& K0 I& S( [1 g; q# w0 b9 \2 E咁難既=.="- w% T) p6 F" r& [: S

3 i) @6 c6 k4 \  ^6 _; c[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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  ?& y: T2 j; U2 \4 f* U; X5 mThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ I5 r1 G1 T8 v% G. S) \第一個答中有獎
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(x - ...

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4 ]1 A( o: I9 K- [: [  x(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:" I' T7 z; M" `4 L( B0 U1 E
4 r% s* F+ s/ k3 P1 _7 f* t4 T+ ]
  N- K: r! L& h, a
(x-x)= 0 ，所以答案係0，is it?

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5 {# S8 a* U% _  b1 r0 v7 {
; D; ?; O7 j* G' A唔似a.math題
- x3 L5 y, ^. f  m似IQ題=.=
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3 y! \3 ?- c& ?[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:
- }! D: k# x% H1 f7 c) N# S. ?( {' j) b7 m' i
% u: t1 i8 {3 g* o' j% z
(x-x)= 0 ，所以答案係0，is it?

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4 L. [, e- A" [Bingo~

waikong

我係學校個學生會單張見過
* A; i8 y- z! E! {4 D諗左一陣先諗到

playbr2

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

karen0123

(哭)~~~~~其實我都知係0.........
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8 h' S  x" g; z8 [2 Q1 F! w這條問題，貼落吹水版，名副其實) C5 J/ O, i* _& Q7 b

4 @* C9 z+ H6 j6 C/ a( s[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]