| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎  j$ q) X, _5 ]

& A. S4 e) r, _- _6 ~/ L(x - a) = x - a% x, |8 [6 c+ }1 L3 G# y& x: h
(x - a) (x - b) = x^2 – ax – bx + ab
: O: k1 L2 b7 q0 D5 O* E(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& [/ `/ `8 ]' T6 P: O7 d; S# O
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
, {; G/ M9 k8 x9 c: c  F- m如此種推，
1 p& `  B! \; q/ L6 _(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
, E7 |( n6 R5 j/ O6 [! s1 j" W% n0 p$ d1 D% T; h
[ 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: l8 ]9 t; e$ z) v* N1 }

Originally posted by Triangel at 2007-4-18 01:26 PM:- R! C1 r& Q1 L& F* o- z; \6 ], _
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
0 |! }4 }+ C, D* q8 t' L" e3 N) ]# F; p3 K

' Z0 I' ?1 A! ?
/ H" m3 C5 l0 i7 L8 e
[ 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:  T! X- C/ Q7 y/ w  Q5 o
咁難既=.="
2 P5 L: E- Q2 k! s: p* r
. h; z* y, X: t; q, q: {; x[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

# l) o2 D$ Z& n! b& u5 f5 C8 R9 p; d8 `9 t' W
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
! T4 x( m& ~, J0 J' X$ @第一個答中有獎9 Z, h6 J% @5 U& @9 R

  M# T3 B% C. H$ ]3 i; S(x - ...

  ^5 Q7 I; q0 g! D; [4 ~: A
& R5 N, c( G/ D( e1 x& S6 Y2 i
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:' r' K; ?' x  {: B0 W

! y; M' t" q% \  p* c/ g! F: ^% e2 X# P0 s! r
(x-x)= 0 ，所以答案係0，is it?

% z8 B- F& m8 o, t6 e; v0 y
$ m: L4 v2 o7 C$ c- a/ H- P2 n% `' c6 p
唔似a.math題; l, {& `' w! r* H& b
似IQ題=.=
: _  a/ X2 t6 `/ M' V" ^; W) f& ^  o9 p- 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:* c( O4 }: i& z9 E, `1 e1 A
4 p0 h# v0 m0 q5 k' M! ^! K
8 ?9 V* v3 Q9 ?7 o( N, J; [( l
(x-x)= 0 ，所以答案係0，is it?

/ e- Y7 v* E4 Y* G/ H  _
7 }8 w) J! T5 [Bingo~

waikong

我係學校個學生會單張見過; j9 y- [2 }1 Z' U) J' 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........." a$ F! U# |1 ?+ `  q

1 F8 J# q9 E' m; Q$ E這條問題，貼落吹水版，名副其實
; j3 s# E0 j' U+ l/ n4 ?4 k* r+ e
. m5 J$ `2 O: `4 T9 ?& H[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]