| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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5 E  U% i/ I9 F  w(x - a) = x - a% ^4 L3 Z3 z* e% i1 X
(x - a) (x - b) = x^2 – ax – bx + ab
. j' u4 B& e2 W' B(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 j8 k9 Q3 i2 w% L
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd+ I' f9 g- N+ Z
如此種推，6 b# F0 V! C' j% K; v
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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. t/ m$ g  w2 h/ b6 p6 W% i

Originally posted by Triangel at 2007-4-18 01:26 PM:' k0 \9 [# S( `% b# o
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, O) D! e; L2 o% [/ l2 b
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, ?7 C& M9 ^& E/ o# e[ 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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7 j) L  ?/ o4 c% F! n[ 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:
7 X- r  v7 W1 r( X. Z; F6 p第一個答中有獎
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  {6 ?  }' `5 Y) T5 |8 l(x - ...

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# K6 h2 G0 r) Y, y: z(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:* P# F$ l. t2 q
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(x-x)= 0 ，所以答案係0，is it?

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9 d9 \7 K2 T' ~2 ?1 {4 {8 E2 |# _& l7 z" q% j* u* u! p6 D
唔似a.math題
6 ]; G! k" J4 U6 ?$ Z似IQ題=.=- \+ X* u0 t  u! x- j8 \. \

& [8 v- D% I* m( s9 ^[ 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:
# {0 Z' g1 _7 s' t! a7 D3 T5 O5 v) ]2 r- K$ r  O
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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
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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.........' {1 {& w$ g. t' u% z

! ]( ?$ j2 u( J/ J( P$ }這條問題，貼落吹水版，名副其實/ }$ M8 W. S2 ]& x
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]