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From: "GON" <gon@mocha.freemail.ne.jp>
Newsgroups: fj.sci.math
Subject: Quiz1
Date: Mon, 8 Sep 2003 19:53:35 +0900
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Xref: ccsf.homeunix.org fj.sci.math:478

sin(π/n)・sin(2π/n)・sin(3π/n)・・・sin((n-2)π/n)・sin((n-1)π/n) を求めよ。

＃　導出過程も書くこと