| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎# E5 h- e5 T8 m+ [+ X, j0 j5 }
# ~0 j: L% g3 m( ^; Y! B1 p
(x - a) = x - a, _/ r; ?) w" l
(x - a) (x - b) = x^2 – ax – bx + ab
6 v, I9 C" e( ](x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc$ z5 P) u9 s& P( H# E
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7 E" x% c# W5 _& P. x
如此種推，8 H$ |1 a$ R; C: I/ x" Y- k" `
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
: \& o# ]8 n& A' {+ G
8 ^& _, Z/ `, @- Z" \[ 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# [( H) |4 Q+ Q- Y! L

Originally posted by Triangel at 2007-4-18 01:26 PM:. Y9 T1 D( p$ ?( s3 q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc; B% i/ }  `% L& Y- M
2 o2 @# I0 B) T7 S$ r

  S: r) m. V  G0 y

* t$ Y# t# u1 p3 G[ 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:
5 L7 R5 a' i! U8 d' I  l6 z咁難既=.="7 c" T8 W  q* Q$ E8 R
( R4 M. L( e  r0 F! T# }2 x
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

# Z+ Q! j9 q* V) g; g9 c* ~4 ?
  l  C3 d! l7 J% D# `6 R
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ {3 ]! W. V  M4 k/ F- @  k第一個答中有獎, E6 ^2 K! c+ D0 ~- N

* M9 M# i, k3 R5 A(x - ...

& J9 l  n2 z, s, |2 c8 N/ j& y( w* ^1 n% a+ N2 x$ Z5 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:& m* h3 m7 |: R  _

5 \8 R( J+ J2 z, r* f5 ~
4 Y/ U: ?' c& n(x-x)= 0 ，所以答案係0，is it?

4 f) f9 w' N2 p$ e8 C/ b2 B4 ^4 U- M# w% B
6 V0 ~6 B9 m. W) ]& o3 P7 G/ d
唔似a.math題4 B) ^) C& v" S; h$ x' `" \
似IQ題=.=
8 }" q9 `0 ~  m3 u1 }( B$ F) D# ?# |
[ 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:5 X" t% `8 t4 F! s
5 F1 i+ G  ?% E- N2 K$ S9 [

7 ]( i2 r% B$ t% S4 k+ l(x-x)= 0 ，所以答案係0，is it?

- n  p1 A) k) D" F+ O; |$ N7 L# W2 m5 I3 m+ L5 m
Bingo~

waikong

我係學校個學生會單張見過
6 Q! N2 ~( G; v6 f2 T+ 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.........4 U+ l: z0 D. c8 }, R9 d/ J$ h

# ?8 U+ L1 p0 A( [這條問題，貼落吹水版，名副其實
: Q# i6 M9 A. \# E
0 {/ j% z$ O$ E$ Z% O; d/ F8 H/ k[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]