| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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/ }/ p/ P5 ^- F& r2 |(x - a) = x - a: \' C( |3 t3 i' Q
(x - a) (x - b) = x^2 – ax – bx + ab, @: ^: z  F3 C) x0 {+ F6 U
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
( f( I6 p' [6 k. r$ L(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd9 R0 x* ?+ e7 y2 N# j: P
如此種推，
  p/ s( d( K) }+ P* r, K(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 r4 X' u( A6 w
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:' a( y% b8 n, \) \( q" \
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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& X. r1 }5 v% V[ 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:
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1 g& n, S2 n2 e0 p8 {[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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* Q# M. e& v. B" i2 \! t% v' bThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
' O$ _( N# b, _; }  R第一個答中有獎
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4 y6 c6 |8 i+ P5 h. ~# c0 T- S% P(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:5 m, v9 M4 b2 M% B

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! W. T" I! B* O! t5 P(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
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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:, V2 v. }8 W7 H% k
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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+ `# @0 n/ {! H* 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.........8 K( ]0 i5 V1 q5 }2 C8 `

. _# D: J& x8 m% h這條問題，貼落吹水版，名副其實% z6 N$ j5 {9 H* C7 \
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]