| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& K3 f3 H. j1 w5 v

7 d4 O) K! p1 u. G" j(x - a) = x - a# P# _( V# v" q1 {/ D1 B
(x - a) (x - b) = x^2 – ax – bx + ab
( S, r7 a1 |8 E(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
% v- e( l0 h& D$ l(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd1 C) ~) J" K2 n% k
如此種推，$ A. v/ A2 f2 ?- o; \; z
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
- P$ O, W2 i" ?3 i4 K' c" M4 j. {; |3 c6 e  b
[ 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 S( n0 w5 u& I) z5 k' f3 j

Originally posted by Triangel at 2007-4-18 01:26 PM:; s3 z) V  x( J1 ?2 l  D/ b
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
4 d" d9 k! O# D" m; d
# Z+ d" z0 V, S0 b/ F

6 ~- z/ o: O, g& q, e4 I
1 I4 A6 K: ?! z: o8 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:
- `9 V2 b1 ~% _& q+ n/ O- U' v$ t8 K# P咁難既=.="$ x) p( \* I* z! z; E& o, ~% k. Y

9 X% y% \# r2 T) a5 R[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

& J$ j5 q; H+ R- l  W( f+ Z

, B$ M3 O: q8 v4 G' C! ^. KThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
* a4 S" X* J/ }! A第一個答中有獎/ J* |" W) ]9 r, X/ y. z

/ Q- t! t6 d" c. j6 l3 L8 l& y(x - ...

6 R$ R4 l, d* |7 m* t" g

6 N5 `9 h& s& x) |4 Q5 d(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:% l6 i, C2 R0 c+ d' \1 R+ ]2 D* P
  P- K% f, h0 e# ~' p1 n6 F

( q/ K% o- y" j  p* P# Y8 v2 N(x-x)= 0 ，所以答案係0，is it?

& B3 O; ?. C( x6 [, b
4 V# h: l  N+ N3 @, W" m& O

7 n  j5 z' D2 ?3 P' b, Z唔似a.math題
. [( J2 ?" S, J% a似IQ題=.=
% |: |9 y4 L" E; u7 P* p5 P" J3 m* E) j. c3 `$ |
[ 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:
' e# }# ~( Y; P, `; ^, r4 s' ^" @/ ?2 U; O
7 [. a/ B# v; u9 M. W( `
(x-x)= 0 ，所以答案係0，is it?

+ K, l) o% ?  \. ?- Y. z
- Y* o0 l9 D& i: g, U& K
Bingo~

waikong

我係學校個學生會單張見過. p$ p# s3 m7 R# T- e& C0 n3 _
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.........
( j+ _: k) H: r/ Z8 c' b6 R) k# r  [8 ]
這條問題，貼落吹水版，名副其實. O: w  y; K/ z! w

3 a( i! Z( Y/ B1 [3 j" }[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]