| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
5 h6 a6 }* C" I, u& A7 z8 Q0 K6 P(x - a) (x - b) = x^2 – ax – bx + ab
$ Z8 `3 U: k- b, `(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 c4 w7 a7 ~0 d7 |& p, Y- j$ U* @
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
$ J, o5 n9 P% v如此種推，4 m' }% @7 T" E  u9 v" Z! B
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ V# w8 n3 l7 D5 f0 }7 i" D" g

4 w& e, ^9 b( \+ z7 G6 w[ 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:
. p- a- J+ I$ ?( r9 N, U(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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. p# F9 E8 Q" i" d7 X[ 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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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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8 h: C2 n7 ~2 m8 K: O" j% O4 `% m" wThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:' ~. P; T$ L1 j9 K3 B
第一個答中有獎
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) _0 J5 E# [; s4 [! L! ?(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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(x-x)= 0 ，所以答案係0，is it?

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  B, d; a; I& }6 I' Y6 _% A" J1 F* r1 K0 z& `) N+ K
唔似a.math題; F& k0 c6 I+ N2 R' h$ M( Y- i3 t
似IQ題=.=. K$ `, [9 d  _( o6 M

5 M# m' b/ X% R- Q/ [, e  ~8 F[ 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:
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3 g  C1 o+ k2 Q) k9 E* T(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6 h4 e& I$ T- ]' N
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.........; u8 G3 u" `+ R: X: \5 Y# G
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這條問題，貼落吹水版，名副其實
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1 Y) |' x$ \  _0 H; i( Z[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]