| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
) n, {; z( u3 ]! x8 r9 f; X; g5 T( N3 T; ?" n8 Z1 J
(x - a) = x - a2 C. t. A' f# G8 G
(x - a) (x - b) = x^2 – ax – bx + ab6 h, Z% t# Z  q' @, R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; c7 C& q5 P5 r: Q/ K- M(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd# F) e3 O9 h0 Q% s
如此種推，
4 O3 h4 v/ U; o- Y% E$ o(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???0 ^3 d0 ~4 x( L- |2 m

5 d( K  ?  H, t0 M6 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 U& ~  O; K$ I$ J( _4 t

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 B- m0 `7 C" [2 Q. \(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc* q" {' P- [6 {, D1 ~
7 V* h  R  t! q

" N) j$ _$ }/ f  T# H# R3 ^) {, v! v! ?0 Y- w! [" 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:/ C' z0 R! q0 {" H/ S$ z0 G% L
咁難既=.="- j; Q6 j( H/ ^3 W' Y

3 r, R+ f& F2 E! U4 w[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

" _' q; E; P5 x. q/ y. u. z  v
1 w2 m( d% t6 {/ f. F2 ~
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
, O: h% `: l  X% r4 [第一個答中有獎$ I. n7 y7 j0 M) }% q2 Y
) |2 U4 E8 _( x
(x - ...

0 l5 X' p0 ?" Q8 S3 D! \' o6 z
; P! }7 v+ g5 f(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:/ B2 [6 t7 j7 T8 X

' w" E& k- S2 x0 f3 a* C$ \. T! k; }" k! T9 ?  l+ J: y7 m
(x-x)= 0 ，所以答案係0，is it?

. f( d' F6 J4 H; f4 w. p7 {0 `0 {7 `% |4 ~: o3 P# c
( r$ _/ \8 Z/ N3 S% C" O: d) j; w
唔似a.math題
' z; b* r+ a/ z4 f- I/ f似IQ題=.=0 u3 e2 m& U  D: n

/ o3 k& i% u  ~2 K. c, L7 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:
  r, S- h% {; Z  ~4 o  b; u4 x4 M* g5 [( U1 K" M- |: }
% W( S5 E0 V. ]" ~$ ]5 y# J
(x-x)= 0 ，所以答案係0，is it?

& |% r+ q  O8 e& R# g! T( V* C: ^; y& B- b
Bingo~

waikong

我係學校個學生會單張見過3 ?" F% Y: r! z! Q' j  a2 d
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........./ U6 z) K0 _$ r

8 W! L) p% O  |) a" S2 n這條問題，貼落吹水版，名副其實4 Q1 n! Y! Y4 I5 ~
: T4 y" O0 E* R
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]