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[ Last edited by laizuliang on 2008-11-19 at 19:31 ]
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rucedu

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1
cos(2¦Ð/11)+isin(2¦Ð/11)
cos(4¦Ð/11)+isin(4¦Ð/11)
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cos(20¦Ð/11)+isin(20¦Ð/11)
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2Â¥2008-10-31 19:27:47
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wql2010

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3Â¥2008-11-04 15:21:48
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inuwq

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first
1=cos(2¦Ð)+isin(2¦Ð)
second the root is
x=cos(2¦Ð/k)+isin(2¦Ð/k), where k=0,1,...,10
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4Â¥2008-11-05 08:35:36
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