| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎$ b* {  r- v; [* G: e3 r3 H3 z

9 V& C7 E1 v* N% o. I  C0 a% A(x - a) = x - a
- V. E. Z$ \2 g, h9 c; }(x - a) (x - b) = x^2 – ax – bx + ab
8 R& V& G! I# ?" E! n" @% H; _, g(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc% Z( i- p* k, D& L& Q1 f
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
) u! U0 L4 W! s9 D( w0 z如此種推，
8 b2 {! E+ k3 W/ g+ K4 _3 v(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???; r" J9 ~' Q( G/ I9 D

! h6 s* S* q8 p2 {[ 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
: j3 L9 p, B8 V! j4 ^* r* e* r2 T. ]

Originally posted by Triangel at 2007-4-18 01:26 PM:1 t; I' o9 x: O3 ]& G2 z, m$ N
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
  V* }. v* G$ L( z3 j: S2 v/ U) R( d

5 ]2 i  v4 r5 l
0 L: J' Q7 g6 {$ d% t! u[ 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:5 w$ H/ Z" [. L7 k
咁難既=.=") ~) Q) n+ J9 }% G8 S4 g

1 X0 T$ |6 O+ v& e( c1 Y$ v. i7 E[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

5 S  c" i( x* E
3 w% M! [. C6 v) N) _
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
% A& u0 r' p9 C8 ]第一個答中有獎+ k% q6 J! N* W) u2 V% U
7 s! r5 u% j4 ?  H3 ?3 b- f4 I
(x - ...

7 J+ u8 ]) e: d- \, Y
" b! w( }4 l9 e8 K, K; F
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
! O- f5 p" v' u/ v- \& g' m# \9 H7 T) e3 j
4 |* q+ d& Q5 i) p% I( r2 H
(x-x)= 0 ，所以答案係0，is it?

6 M. l* F/ M$ u3 G* q6 i, d

5 J7 q0 q! H$ \6 h$ ?
' m# h- B8 E& w) o唔似a.math題
! s9 y8 a9 G! m( Y; ?似IQ題=.=
5 ?6 N7 A8 a- Y1 R
; s6 L3 E; `2 ?2 l# u" Y# V4 J[ 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:5 K  e; m; n8 ]0 O  u
# K0 b4 h0 Z0 e7 g
5 g8 _5 E* b7 G7 g: O7 r( d
(x-x)= 0 ，所以答案係0，is it?

/ ?' y% c3 J2 q+ z: ?* k/ h) H: U6 a& n- e

" y  s% S/ b( z3 {% i: n# fBingo~

waikong

我係學校個學生會單張見過
6 v3 f) ]: g4 O' ~8 R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.........2 n' j* A/ P1 C4 O& q/ z4 h# ~- x

) j- _% J3 f5 s4 j- t這條問題，貼落吹水版，名副其實  D" `' P4 x5 ]8 _3 \4 L

- T+ d- X/ t' h8 N" ^" w[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]