| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎3 A. c% z" n- F3 j8 z

# D" P' E. Q4 B, }3 N7 z(x - a) = x - a- N; r( Z# g6 C1 @3 c* V3 A& r1 j
(x - a) (x - b) = x^2 – ax – bx + ab' S* C6 z# p: E* _+ o. n0 R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& w" F$ ^' b% Z% b7 `
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. \/ o1 m5 q5 Z7 E+ F+ l# @如此種推，  j5 M: D( V7 d" s5 }
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
2 t! [5 i. r; t% t2 u) W% A" C! j7 R6 f# h. 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4 v( d; J6 x4 V' {# f3 c. H

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ f" v/ l5 O6 }" G) M7 W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
' [5 ?7 W+ P  t( a/ F7 z8 }7 Q2 G& O# t2 Z7 _$ F& T* e; B

# K" a# |) l; {# P" d0 u. E; s3 v
  a4 _7 W0 t1 a: h/ H' 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:
  q9 `* J  Z& v3 p咁難既=.="
& s9 Q  y5 z6 H/ p  Y. k/ |3 N* ^9 x
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

' W! ~  o( D3 I% b2 D! `8 T2 j0 a) t! F; T$ r% b6 _
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:( N0 B9 H. `) u3 c' M- w- ?5 I" m$ K
第一個答中有獎
% v( E4 Z% H9 b- ]5 C2 m$ ?
( k9 t) L" k% ^1 A# _( w(x - ...

/ g, [& I$ @1 m3 N$ G1 |1 B# F* z4 y% \! R. j9 ]9 p) Z: W
(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 R$ v: W# Q. n1 V
6 p8 ^# A/ j# V* S5 k( S: M9 P7 S0 M9 A9 N0 B
(x-x)= 0 ，所以答案係0，is it?

# d: H- e3 J# {# A' L; P% |& g2 {$ ?" h) f
: H+ l! ~2 w/ Y
唔似a.math題0 R# U  m8 e( Z, y$ @) A4 r9 W
似IQ題=.=8 C$ [  q& e3 ]6 s0 y0 E0 n0 X1 X
/ I! [( g% D$ D, f( O
[ 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:
/ r0 m1 x4 p9 N1 ?" }# Q9 U' O, h* Q& @* g0 ]

2 G& N2 g3 o5 t/ w- R7 X(x-x)= 0 ，所以答案係0，is it?

" K+ H" h# \, h2 d( |7 W
+ u* R) N. a+ Y8 k
Bingo~

waikong

我係學校個學生會單張見過
6 p* K6 H8 m0 Y; s7 b& S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.........
4 W3 T, {5 \( p$ `" z9 o: C: D& i  ^2 d+ q
這條問題，貼落吹水版，名副其實
+ |% t6 k+ a8 y
4 t% p2 D8 B: j0 w1 ]+ @4 `( ^5 X[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]