| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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" Q4 h! _& U+ m. G(x - a) = x - a
! F- l& h2 Q8 g3 v" h; ?! s(x - a) (x - b) = x^2 – ax – bx + ab) I- |4 I6 u" a. U
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: u; q8 j2 |: P& l
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd1 a/ I# h; S6 b, }8 Z
如此種推，; d! P# o: S3 p$ @: L+ T
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???  k3 {- q7 x4 H$ V# H# T1 [

9 q7 I' B7 ?: i9 e1 |" v. d[ 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- U& `% m  X1 I$ w* z0 x

Originally posted by Triangel at 2007-4-18 01:26 PM:
5 _! f+ H, h$ U1 {- H(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc; p  a* L+ E, p

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1 J) ?9 E5 X9 i2 f8 D0 [- J- ^[ 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:
0 o7 ^; M- |# ~. D/ _: c# ]; a咁難既=.="- S3 V* u3 ]. g8 J' j6 D

$ E* F. j/ ]5 T0 h( O: c6 ]( s[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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" N5 h& c7 k; h9 cThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:5 m9 h# A& g  D  x2 T: u' n9 ~
第一個答中有獎
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5 X' B  Q( V, a$ c3 x2 o(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:3 s; v$ m! \, q' J* P; Y. p6 h

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(x-x)= 0 ，所以答案係0，is it?

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9 `$ [' w* A' m. T6 j9 c- y7 N3 G% o- @$ ~! Q# b8 x: a& F
唔似a.math題# _; Y+ }- Z1 R6 P6 q1 V2 Z% l0 O
似IQ題=.=0 J" j7 M% y9 ~7 A5 \+ f& w2 S* r
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[ 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:- V% x7 r- L! D2 _! U  r- \

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: w% W$ x5 ?" a  Q6 ?8 P& v# X(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
) N& w# Q" k( K1 _% P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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這條問題，貼落吹水版，名副其實
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: `6 \3 R1 \7 T5 M  {[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]