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Path: utzoo!linus!decvax!tektronix!hplabs!oliveb!tymix!kanner
From: kanner@tymix.UUCP (Herb Kanner)
Newsgroups: net.math
Subject: queer identity
Message-ID: <266@tymix.UUCP>
Date: Tue, 24-Jul-84 19:09:49 EDT
Article-I.D.: tymix.266
Posted: Tue Jul 24 19:09:49 1984
Date-Received: Sat, 28-Jul-84 06:29:00 EDT
Organization: Tymshare Inc., Cupertino CA
Lines: 16



The following assertion was found in the curiosity column of a magazine
addressed to mathematics instructors:

	tan(3*pi/11) + 4*sin(2*pi/11) = sqrt(11) exactly, but who
	cares?

Is the relation exact, or is it one of those extraordinary coincidences?
I have confirmed it to 14 places.  If it is a true relation, can anyone
out there supply a proof?

			H. Kanner
			TYMSHARE
			10261 Bubb Road
			Cupertino, CA  95014