| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a( p/ i- E. a( n( i5 H8 D! A$ i
(x - a) (x - b) = x^2 – ax – bx + ab; `- H% \* y" v, h
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 g( i7 r' e4 p- \, R. L" S0 w
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
) Z& w# O1 j. m  ?7 l' O8 i如此種推，
5 C. w9 h0 P' o8 s(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???% R6 w+ o3 _! k

$ n1 b/ c( n! [. e2 j5 d# N[ 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8 @7 u2 ]2 N# l! ~5 w  T

Originally posted by Triangel at 2007-4-18 01:26 PM:- p9 f& p4 z4 O, K7 n, p, q% U
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc0 P5 D/ r* V2 ~4 x+ W3 v1 ~

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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:
! F. j0 u. |& e0 G3 R- K9 e咁難既=.="/ Q5 `+ b1 }* n# a0 a

9 ?0 M5 Q4 H4 J3 [2 u; O[ 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:- U1 r1 b9 I& \* J
第一個答中有獎
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* W9 t7 H7 g, \1 Q(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:
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- u& Z( z; Z% m$ N: a6 }(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
' }# W6 x1 t4 m似IQ題=.=7 |$ h2 f# W4 Y, I( E3 I

2 R. i. E" A+ a! n6 s9 p9 J. g& W[ 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:$ z) f* y: e, R! L2 f
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(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+ ]3 H  S; _6 n1 D/ X/ H- n0 y) F4 e
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5 u+ J$ l; c) C* E+ o8 k# }& U
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]