| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎0 W# e4 i5 n- P7 C( r
# z( H( V# I) d% w: V7 r
(x - a) = x - a
* l9 Q, C# D6 t' l6 ~(x - a) (x - b) = x^2 – ax – bx + ab
: v8 A! Q4 L) ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& R' `4 \* }# b6 U* N4 L
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd( s3 G+ l2 {; A! K/ ]0 N0 {2 w
如此種推，
2 b4 ~5 R& \" J) s& i4 L, I) a0 T(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???  T; K2 w, E7 g2 {) Q2 \' f

! I) _9 M' X6 J7 A# f) p[ 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! i+ @' K3 j$ @* h$ v

Originally posted by Triangel at 2007-4-18 01:26 PM:" ~) s2 F# A/ L7 E- B# e
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
4 G1 F! Q/ X4 D- o
3 C( q* q9 z1 m- V

, {% p2 _* p; u/ G' }1 H

2 c5 T5 [% c# p9 u; r# z[ 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 K& d4 [7 m) Y. p4 e% z# M咁難既=.="
9 T+ e9 c3 K. T4 Z3 U- W" G) V' _9 G7 D8 u0 _7 _9 ]- y& R
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

+ F( h) k9 g( u8 A" x/ D. e1 T1 x' J/ b( @; @; X" A3 |
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
0 l8 U- H2 H% q9 `$ O第一個答中有獎
, p- i* m/ {3 ]! l7 B" ]
1 d1 _$ N. ]  J! B" [9 h2 D  q(x - ...

- |' \; U4 X( k& O6 H
, |( D) V& J, P: }" `% K; H+ W(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
% n6 F/ T* }6 N) E1 D. i! b% J* v+ m
2 u6 K5 ]/ y0 u
(x-x)= 0 ，所以答案係0，is it?

$ U3 M$ j0 N7 J* r7 Q9 Q
4 m' V4 x' o$ N
4 G( w% K+ H6 G+ N) R唔似a.math題
3 U* l/ E* T4 [- l似IQ題=.=
7 k1 [: J0 I& c9 J/ V6 ^1 o
* k3 t0 D2 e. t[ 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:% n: P( H0 [( }% Z% M4 ^6 N& ]
( u2 j+ w1 z" g4 `7 b
" K/ f% m1 C3 t! q% e
(x-x)= 0 ，所以答案係0，is it?

) Z) D8 \3 [3 _0 q8 L
' t) C* t; ^: d8 b% [- J# \Bingo~

waikong

我係學校個學生會單張見過+ v# l: \9 J; @
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.........: \, M6 Y4 G7 c4 x% Z6 K

% F& I" v5 [: _0 Y這條問題，貼落吹水版，名副其實
4 X9 l) @/ ^" K, t, J- k$ h2 m$ \+ J& i) v' C
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]