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Message from discussion cos(pi/19)
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Dann Corbit  
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 More options Nov 4 2009, 6:59 pm
Newsgroups: sci.math
From: Dann Corbit <dcor...@connx.com>
Date: Wed, 4 Nov 2009 10:59:20 -0800
Local: Wed, Nov 4 2009 6:59 pm
Subject: Re: cos(pi/19)
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<1721388518.10802.1257356286507.JavaMail.r...@gallium.mathforum.org>,
tommy1...@gmail.com says...

> what do you know about cos(pi/19) ?

> nice expressions or properties ?

http://oldweb.cecm.sfu.ca/cgi-bin/isc/lookup?
number=.9863613034027223736025091948190671107284815032028763167436651350
63454066494&lookup_type=simple

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