| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a' e- Q% E; @) _: i( g% G7 r( z
(x - a) (x - b) = x^2 – ax – bx + ab" n9 t0 v! H' m/ a7 ^/ O
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
5 ~3 y7 Z4 Y# d# d! c, q(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
% ^' m" |8 B3 N! L如此種推，
/ d6 E/ |/ G! j# S(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???, s. T# u4 t* }

, E1 V; Z/ 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
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Originally posted by Triangel at 2007-4-18 01:26 PM:3 }+ Z; [, K, _9 k
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc  n0 O+ g2 @' ^9 k$ o
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, \. s! U( R0 {, g[ 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:
) j! H# w( \$ G- G% C  C; n咁難既=.="/ n: H; h: c& ]( l- E. {# H

+ V- Y5 T2 g! e# U, d2 W$ u# ][ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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0 v& [9 I+ X  J) ZThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:+ w! S  }& S, ^& G' `( `
第一個答中有獎
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(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:8 m3 j$ e9 q6 u. t2 o/ w# ]- u
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(x-x)= 0 ，所以答案係0，is it?

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5 ]1 V% n; {; N: c* c2 Y唔似a.math題0 Z2 f+ F- p1 I4 F' o% p
似IQ題=.=
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% [& w( E- _$ s  k4 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:, K) h1 v! h1 w5 ^7 s" E7 X

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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
/ P/ q! J" Z) h- y! H( M  I+ A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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; n" G1 F; x8 N/ F這條問題，貼落吹水版，名副其實. U0 ]+ U" O: [' t% `7 \

9 v# ^1 M0 g* \0 u[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]