| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
  c7 {7 D- }( j4 n( |" @7 `* m( h4 b2 G- ]' l
(x - a) = x - a
6 F* s; n( n( x1 t8 P- m) e  g(x - a) (x - b) = x^2 – ax – bx + ab# r6 L  x+ ^' W4 Q" v' s8 p9 d
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
6 A. v6 J2 L: \4 l5 T(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
$ I1 U; E5 Y8 k1 y如此種推，
( z5 r  q" f+ I( f4 _9 n(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???4 N# D# z- [' \. t
  s5 o5 ^  k) i
[ 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6 p( [1 a, i! _2 R% U9 A6 R1 t& m' P

Originally posted by Triangel at 2007-4-18 01:26 PM:
' W, V" a4 Z- C(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
$ r: {1 W8 d  B" b# U* Q& k% t4 q/ \  S

) h* D' n; [: v/ Y' b
  p4 k9 X. [% t4 u8 q& V* o  N[ 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:( r0 Y5 Q: l) m* m0 p! K2 x
咁難既=.="- ?. _% z0 H2 S
6 F' Y1 P+ ^3 o: R- T
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

" y; p' F9 J/ j  N+ R3 w; R( \; N2 P) n& E% f* E! C3 b: y# `
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
# N/ \# R- K, u- c8 @3 F  g* V! U第一個答中有獎
4 {  L+ D- C0 B- G1 X) W! s6 w( p8 p! s
(x - ...

7 h& z5 S! p' P
- A. S  i. _/ ]8 |: 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:
8 p5 y( Z# ^( W& c& r' ~5 o' ~* C( G/ s6 d  A4 ?- l/ B. P  c9 b
! e: l1 @, T  @- Q" H' A
(x-x)= 0 ，所以答案係0，is it?

8 L: x8 R7 X% Q# M
# W! i4 x6 v' s% a8 s
' ?% n& f4 u) k8 k  K' w
唔似a.math題
' G2 u( ~& [; ?( E" E, K似IQ題=.=' p& F4 R0 P3 F* e2 x

% c% V/ S, @( `3 q[ 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:" B2 O* s7 ?* \1 j0 `$ t! f' X
$ C4 v) a: d6 ^+ A- u
0 {! K3 x* q6 t
(x-x)= 0 ，所以答案係0，is it?

/ `6 z) o3 i) H1 M) t+ q
$ M, o0 i  z- l% n" w7 G2 SBingo~

waikong

我係學校個學生會單張見過
9 {( q, B' f3 W: }' G6 J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.........
. Z( T2 z$ [- u/ i" Q( D) w; m8 B& X0 W' N$ M) ?  |
這條問題，貼落吹水版，名副其實
0 {* `' ?( D5 y- e1 x6 {0 z0 ?  d& m+ w/ ]8 e
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]