| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
0 p& d3 U4 }+ e2 R) G! h3 l1 I5 Z0 r, J' ?. y2 Y) g
(x - a) = x - a2 r  n# a3 k# T+ z2 K
(x - a) (x - b) = x^2 – ax – bx + ab+ \1 h- Y2 `; B4 R8 [
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
2 @  g6 ]$ a4 i" J( y(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd. ?' O8 r0 Y! E% b) V) l
如此種推，
% P8 ?3 d$ k3 V9 ]$ @(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???8 g/ `9 X- ?( F2 X; P# J. |
- n8 L; C" P: U  ^1 U9 z$ M
[ 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( L. w. c& v' F5 w

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ P/ [& ~( j& t' H& e2 K( q  `(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
- G- C! g( B* L) A0 ?$ q/ a6 @
  O0 h6 j( b/ n+ I% n$ N9 ^

  Q8 @( r1 A9 W4 J3 [8 `3 a8 B; U* T: {
[ 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:  p+ V& ?. k* @1 i
咁難既=.="
3 D3 ]4 u2 H& P4 f3 c- F# ]
2 e3 Y9 x/ v6 {5 O6 a( ^, d0 R[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

, ^+ g; m0 B% y5 v
: _7 |1 F# i: k1 W6 Z/ u* V
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:/ [; u, h1 b5 p  n, u  [
第一個答中有獎
3 v, H- @5 x* E
' W" c; _/ K2 l(x - ...

3 ?' e: W2 g: g, d2 u% ]/ C; l, w' d# o
(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 Z% \6 m+ \% `, l; b, j8 a7 j$ s7 M" z( x5 d" }9 n1 O
, B! o9 ~7 c1 h5 V9 w/ Z5 m3 Z
(x-x)= 0 ，所以答案係0，is it?

- d& u0 W; O6 S( q
0 F, c. b+ Z' o/ a) ]0 {3 A, Z& _+ M$ l. x4 ]
唔似a.math題
, n: Y' `% I* C% R4 Z9 O似IQ題=.=4 V0 c6 Q; z- H2 c$ n

* H$ N' `) q$ b# s[ 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:( {6 \6 @, I$ k; u) P1 @; U& y

; x/ p) C& M) q" R6 Q* C- t- W% R6 J7 M* \8 K( G8 n/ |( \
(x-x)= 0 ，所以答案係0，is it?

# D& O- P3 c5 {0 _1 ?  ?; R6 D
& o5 Y$ B1 w; m4 L
Bingo~

waikong

我係學校個學生會單張見過
' V) P/ C+ x" E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% y$ e% C* d5 U! t* y
3 q" L; {! G5 U- t& b# w8 J這條問題，貼落吹水版，名副其實4 Y3 E9 n, a! \6 P
7 u3 ]4 E0 z1 H4 F+ w
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]