Talk:Sine of 72 Degrees

I don't believe that particular nested radical has a simple surd form --Ybab321 (talk) 01:20, 18 September 2014 (UTC)


 * Odd had a naive belief that *all* such expressions could be rendered as simple surds. May need research. --prime mover (talk) 05:02, 18 September 2014 (UTC)