| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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6 L. d9 D4 c$ k4 n- U0 t+ [$ |; J(x - a) = x - a
9 C6 W% ~/ A4 _- o(x - a) (x - b) = x^2 – ax – bx + ab
; f, \/ U& C$ B* {6 f* x  L! r(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc/ O" @5 ~( ~  g5 V  M
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; ^8 [* l4 _' W3 x' F
如此種推，
: k" _  W$ E) e  m; v9 c# }(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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+ F4 J' q2 m3 F/ ?[ 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  U) Q% x1 P) \5 c

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 B4 b& R; o( T/ V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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+ r1 O6 s; ^4 H' `8 g! \6 Q[ 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:' {% l7 p5 D% p' H
咁難既=.="/ H6 ]& Y, k$ g$ W* U( V# [8 S

5 z8 i: q' `$ {[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:4 r; t( W! p+ z% Y' S/ P5 w
第一個答中有獎
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! [+ n8 f1 Z/ Q3 t: V0 T9 M) y(x - ...

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9 F5 z2 |  j: X: j" m  ~  G$ _- E$ `(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:, b3 M4 T6 _: D6 k
3 h# v6 V5 s" l+ S0 F$ ?
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(x-x)= 0 ，所以答案係0，is it?

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) @/ s! i  v: {, O; g唔似a.math題- Q' o3 U, G; I; K8 e6 U" u- b
似IQ題=.=( L) Q* J9 o1 U' o" j6 K+ {

/ S/ Z; r# I8 e% I, @[ 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:8 w2 r& t# k4 x0 i, p  Z; ~

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$ t, y2 s% l( N1 d* \9 l(x-x)= 0 ，所以答案係0，is it?

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4 C; A, k0 r2 T( @8 G0 h9 VBingo~

waikong

我係學校個學生會單張見過
  j3 U  {4 U, x; y* _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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這條問題，貼落吹水版，名副其實
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- S' ~# p: ^% s3 A[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]