| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎2 c( S0 i7 _4 R1 a% s$ J  |) c3 Y

9 n, A; Q  X$ Z# S6 l, K(x - a) = x - a: a7 K6 q( G$ G
(x - a) (x - b) = x^2 – ax – bx + ab
$ E$ y5 {& Z- `& M& f(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 g. E3 O, x: S" s0 K) a5 {" E6 W6 W
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
) [/ u1 @) ~: w/ g# m) A如此種推，7 y2 u  Q. P/ E' N1 {
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???6 F& a5 z% E# L# K0 o

) P! d% m3 d: ^* @  _1 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 \) Z$ Y* n1 e& o& i2 G/ u; a( M* }

Originally posted by Triangel at 2007-4-18 01:26 PM:( H7 M3 e1 n1 K0 b: g, {2 S% _, M
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc( Q+ J( O; \: U0 a
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[ 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:
# ^+ ]' r5 D+ M- C$ q咁難既=.="
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- U7 I8 o# k; t# x6 {$ z0 b- n  n[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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8 r9 s# V# z3 X5 p) ]' }5 tThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
) S( Z6 r' ^. T1 x+ N* y第一個答中有獎. U0 ~; i6 p) _! w

& H, N$ C7 C6 _' C0 \( u(x - ...

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: n3 T+ c' U& f* E7 W' ~: m(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
$ D5 B0 K5 }. R0 W
& q: y# t+ T6 o
! Y7 Z( |! }+ q2 U: n(x-x)= 0 ，所以答案係0，is it?

) e% a0 ?+ @, X: [3 k: P; Y) e5 `0 F9 x/ J" {
  Q# ?* `7 Y1 W# X
唔似a.math題
3 W% N: W2 w/ o, C- m- O3 Y: u似IQ題=.=
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0 P. ~9 X& d( A' V. q" S* o[ 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:
# S" ]8 Y2 {  X  f* D4 \
0 a& G/ S. D, T7 O/ y" r6 w! x& ~8 |- |  y' H& m) C% `& I
(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過" P/ L* c% ^: k, ^) t$ X4 f
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.........' z# j& s7 A+ m1 Z* Q- n6 {5 U( _

3 E8 b' C/ P5 M$ [% B3 \  y8 f這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]