| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
) o* f& C, w5 N( W- i8 y4 Y7 _8 s' x" j- N& M" E9 J
(x - a) = x - a7 g  V8 d( A7 ^" X4 r, ?+ e+ g1 e
(x - a) (x - b) = x^2 – ax – bx + ab- g; b6 K: L  S# Y& B
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
" q: e+ s  v% ~5 f% S4 L(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd/ A  }4 W5 o& P1 W& y5 M; q3 k
如此種推，) U9 g% ~5 Y1 u0 g$ l
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???" |& w% d* p4 q; K

/ m2 Q! o8 K  v4 [* y7 W. _2 [. 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1 p/ d% t3 Z+ i; d

Originally posted by Triangel at 2007-4-18 01:26 PM:
# X+ G2 B) Q# _+ n* Q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
0 x+ S0 P0 W4 M3 T$ H5 w/ [5 }7 A$ |6 U* H' _9 N7 d

& P' W& A& r7 b

* e/ J8 B7 m1 B[ 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:4 L' J2 o# i1 e% |' W8 [6 I
咁難既=.="
% a2 N5 S2 t3 J( y! O0 p- L) {+ k
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

  l- K% f4 x! N4 q: y0 J

3 Y% C+ S- E: e/ w+ KThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:. y& z/ C* `3 R! P1 a& p
第一個答中有獎
3 E6 B( g: v8 ]' G
8 ^, ~; k# k* L  O4 P( Q) z5 z8 Y(x - ...

5 C* F" K: |; V( y3 D" s( u, N. u, A+ h1 H+ N  N
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
/ w1 g  t6 l8 k& w- l) D- ~- V9 F3 s" g/ @
# g, Q* T- K3 @' ~
(x-x)= 0 ，所以答案係0，is it?

3 F) y0 b, }5 X
6 S8 `5 Z7 z8 @' O$ \
- W* r# J+ e) q7 C2 f! L& ]+ ?8 m唔似a.math題6 @: X% |+ M1 y9 v7 ?
似IQ題=.=
; _$ h& y( E5 i5 T) M% e$ m5 f$ w+ L
[ 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:
# F- j' }( l' s0 A- i, ^8 _2 w5 ~+ L+ c( |5 N

8 l1 p# o: s3 B( U(x-x)= 0 ，所以答案係0，is it?

: ~; Y! T. B: f6 J# m
1 w  w9 \7 w# M( A( TBingo~

waikong

我係學校個學生會單張見過& u& h: x0 f  ~6 E* 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.........
& M/ L7 i0 ?) T' l
6 H( {8 S& D5 X2 q2 W% t# s這條問題，貼落吹水版，名副其實
$ K9 q. [$ I* j, ^# x' l5 \0 ~) c7 v7 e) D8 u3 ?% e1 E
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]