| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎. v- v& Z& ]5 o. @6 l

$ z4 a) N% n, z+ \7 ]& `(x - a) = x - a& y. r8 s# J' m5 N4 [2 Q8 _- e+ m
(x - a) (x - b) = x^2 – ax – bx + ab
! v. ?& c- d" W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
0 v+ z+ V/ w, Z* h- O(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
- r7 h/ j9 c8 p- K2 s如此種推，
0 j+ o( R6 V) \7 z(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 `, R7 y1 g7 s' f' F) m( R
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[ 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: N$ G: P' V$ N% f' p. m; o

Originally posted by Triangel at 2007-4-18 01:26 PM:, P8 V$ ^4 X* b
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc3 ~1 e  ^: S( Q" n
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  z* z& D7 i$ S  h3 E/ ~* w[ 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:
% i. Z  h$ I: U4 D$ e咁難既=.="
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' s" c" d) O% }# h- K[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
2 G+ D; u0 b' P8 I; d第一個答中有獎
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$ \( B. J: I' E; K" `7 F(x - ...

( L/ ^8 I5 n: H! ^8 @; [- O0 e

7 k# d! o7 w% I6 _1 E5 q- z0 \8 b(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:4 r" ?+ o/ z4 H- ]8 D
1 u4 {, i+ ^7 S& }; m: d- ~

. }# z5 ?2 S; l: @2 i! m(x-x)= 0 ，所以答案係0，is it?

( Q: z: f2 \, C

  I' k( O9 u: T  s% e, \+ m0 Z
1 |# c# }' S/ ^' j- V唔似a.math題
- U  W) y3 L! `& j. W; @0 e1 q0 {似IQ題=.=* @9 n* s  f2 B/ ~" K

$ ~+ j% m9 _% c, Q, l  Q/ ^[ 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:
5 m8 H2 s, {! x- m4 Q0 K7 g2 i# N& X5 a. d/ L4 k) s3 Q
3 p4 v  s7 s1 P1 Y  ?  t
(x-x)= 0 ，所以答案係0，is it?

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! ^' c2 u) }9 u1 p- BBingo~

waikong

我係學校個學生會單張見過5 i( }0 O6 _3 ]/ X( r
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.........
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' J; C; B, E, h- L/ X這條問題，貼落吹水版，名副其實
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# A( [% p- i6 Y! e+ W/ r[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]