| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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8 s* A! f& w! e! a9 W# s4 y(x - a) = x - a8 x& R6 r+ T# k8 D( O  m( [
(x - a) (x - b) = x^2 – ax – bx + ab
3 |& N8 \# u& `9 Z3 N/ [(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc' D+ \9 D3 [  s3 D: P  I2 z5 G
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
& l5 f) A0 ]0 g如此種推，
, `8 d+ [* C+ s2 s$ X: y4 |(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/ R/ [/ k$ B1 O* i4 v- M' t

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ Y% o- ]1 i, g5 W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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- L( O& W! h6 U6 w3 X) o[ 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:. w3 \! R4 j  n* B0 E* d* x9 z3 W
咁難既=.="
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9 G0 |3 ~0 s8 ?/ ^( r, D[ 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:9 \6 S; w" V# j! D' C! 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:
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(x-x)= 0 ，所以答案係0，is it?

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* Y0 t8 e8 r0 \8 m, c唔似a.math題
7 r# ]6 w9 n8 v) R. t% C似IQ題=.=$ Q+ C. l' f5 b5 Y

, c6 V  v) f% z# l2 _[ 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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( @- i- p9 v) |5 q5 B/ a(x-x)= 0 ，所以答案係0，is it?

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( i3 R) R8 a$ w' D# D! n- ZBingo~

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.........
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這條問題，貼落吹水版，名副其實1 H# ]" n1 O/ J
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]