| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
; P2 h* {9 @+ s: K7 J: f
: t/ f7 l! a0 U/ W' `% V9 z(x - a) = x - a$ d2 C5 \7 V5 M
(x - a) (x - b) = x^2 – ax – bx + ab
) f4 R& W# }) J7 A. L' a% B9 T(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
" U& c' h# e  P0 R: s(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
: ^. U2 B- p/ ^+ ^  n* Q3 c% o如此種推，6 V* V' D9 M8 P8 v2 f4 L8 T
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
7 |: L7 ]1 B3 H' k: E
7 e' A& f( A6 T[ 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
5 O+ c5 W9 [& Y' x4 G+ \

Originally posted by Triangel at 2007-4-18 01:26 PM:1 L9 X7 B5 G3 W1 y% f
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
! \7 |9 S) J+ V8 I: `+ w5 _9 W. p& c. _0 I* B

9 f6 F6 C9 X: W1 X) X

( S0 N1 B7 g$ O. H[ 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:* D" v3 h; [6 S+ I9 F. C- @
咁難既=.="
: N5 V4 d4 C  q$ p; u' ~% v( P
9 c/ Y+ t1 T- A0 B[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

- Y1 ]" b& \) t' C. x; I0 m  r# K3 _
& f6 j" D; H; |1 ]0 j3 o; L( J3 A/ m: ~
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
  V8 f7 B0 `3 O. s" `第一個答中有獎
$ ?+ U( c# d0 M5 O8 u
! I" B7 r" [7 u8 N(x - ...

' _/ s' j8 y$ ~
% Y0 D! l5 [: 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:8 l/ E0 X8 _& k6 A+ l" @: k

/ z) P6 N: r  u$ J6 n* Q# ?! w! |0 f% H2 \
(x-x)= 0 ，所以答案係0，is it?

/ h2 b& f* }' ?. ]& W
! |+ e( s+ P; _8 U# V# X8 I6 u7 d  l' O8 c7 G) I$ F
唔似a.math題
+ }; \" h5 E1 ?! Y# Z+ k* {似IQ題=.=
; ?0 _4 a% `; }0 n. j/ ^! Q! l
) I0 `! k! t! e, c3 z- `0 H[ 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:
1 g9 Y8 ~) s5 h$ l0 T) o2 h+ @( u+ {7 y0 x1 H- [
+ K. W1 D! s  F. _' g0 J
(x-x)= 0 ，所以答案係0，is it?

! _: h8 U/ E; @8 s) W* W# K; U) B  I: S/ F8 z) Q: m5 R+ b5 O. w. r
Bingo~

waikong

我係學校個學生會單張見過
* E& @7 A. m  ]' _7 e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.........
! k7 u; |% Y4 K" g, c3 h5 k" t: a, v# B5 a6 k
這條問題，貼落吹水版，名副其實, Y* z; r+ r+ G( u0 S* \' K7 Z3 g
+ s& z3 P& Q' W0 I* z1 F; R
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]