| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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' l& m# [0 H) y(x - a) = x - a
( H8 B% J4 ^0 `- ^. D% e(x - a) (x - b) = x^2 – ax – bx + ab4 |8 D) g5 i7 U+ l9 G
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 s$ k( g2 y, W( s7 w% e6 K  W  O
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd* B) B/ ?# D3 Y4 \* B8 E$ V' m
如此種推，3 q( `0 Y3 q9 ^' f
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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+ V* m, ^+ E9 y[ 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  a" ~% x: h# y7 L$ X

Originally posted by Triangel at 2007-4-18 01:26 PM:" K( l, h; L0 t* s/ ?
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, E! F4 l( e7 C6 z5 y, Q

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/ j/ Z9 \7 j9 S1 O6 x3 H[ 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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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:/ \8 E1 A4 X/ h- E* S( L
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:
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(x-x)= 0 ，所以答案係0，is it?

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9 X& d7 n) m+ s- o+ l/ h/ U6 V唔似a.math題4 L" W: u" n  S  E4 n0 M* t1 N
似IQ題=.=1 _9 D) d) D- U- x% e( X
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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:& l8 ]2 ]" @& M# V8 B8 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8 a. H6 ~& E" C! t2 P" o
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.........5 B; y1 z) o+ w+ d1 g/ S+ l1 r& r

. T- Y8 ^& s7 F這條問題，貼落吹水版，名副其實' g; _* e0 b* B

' k1 R- J% z* q; l# X[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]