| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
# _/ m1 M' X& `/ p3 r) x0 A
" w. c$ Y0 B6 H% m( A3 W. O(x - a) = x - a
6 u. X- j+ D) w1 O: f9 f(x - a) (x - b) = x^2 – ax – bx + ab
0 g0 q( G( |% Y8 z( _(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& L# C# ?) I6 u5 o5 g$ c" i
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; d' Z7 W/ L3 Z5 s! D如此種推，
6 O) G, P2 c& _$ L7 C" ](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 B, ^# f% ?+ b) a( ^

; Q/ h2 y) E. q' f8 i7 Y% p[ 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
! D1 c* n/ r# W1 d6 h

Originally posted by Triangel at 2007-4-18 01:26 PM:
! H3 Y) |1 {9 r2 j/ o6 {& C(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
& d. }& F+ t# i2 C! W# _. s! l& R$ m8 |8 Q  e+ E- r

; B6 A- Q; m0 U5 c
, [) C2 @4 e0 |% E. U# F5 M! O. w[ 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:& f8 T5 v0 Q& X$ I
咁難既=.="
7 n6 ~9 _# c" Q! R6 j; {, j. f. H
9 T. l4 {4 _$ O: a0 H! e[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

* q+ S; H+ q8 L1 ~% y4 G$ Z
' l; G/ l, H8 @& Y' U) H1 W- t
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:  W7 k1 C/ `9 f
第一個答中有獎3 Z9 B& y" n/ s) {
2 ^. ?2 q- Z; b3 d
(x - ...

! l! y) \: \6 M* ?( R- ]7 n8 r( }, _7 g" ?2 \& L
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
6 p; R3 n  z) s/ P0 F" A( ^! [# f+ ^) ]' p: p

: P/ G) h3 q- d(x-x)= 0 ，所以答案係0，is it?

  e" ^* W' B; O# b

# ]* ]& A! `2 q! B( e% r$ W' U
1 F( P7 l7 x& l# u8 k  b; j# J唔似a.math題2 W% a5 }" c# J, T& L4 `) u
似IQ題=.=# c! e* j, J( C8 N% K
% W0 b% h% S3 @  W1 f" `! t: U
[ 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:( X$ B8 R/ G: p4 \% n

' J9 ~  {5 y, D+ \6 \* X" T( b/ S( x* W
(x-x)= 0 ，所以答案係0，is it?

! j" V9 m& p: F4 z! g3 Q  h6 B0 K- C3 ~
Bingo~

waikong

我係學校個學生會單張見過
8 ~/ h, U  m1 {' S7 E1 P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.........
! e! x- F  m$ b7 Z+ ]/ z  `$ M/ J# A) o
這條問題，貼落吹水版，名副其實
- _8 }" ~8 U) q9 S4 O) s4 a
" t' z, Z" {, R8 ^[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]