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March 18th, 2011, 09:30 AM  #1 
Newbie Joined: Feb 2011 Posts: 13 Thanks: 0  Law of Cosines PWW
I wonder if anyone would comment on the value of this proof without words I have done on the Law of Cosines. It is independent of the Pythagorean Theorem. More on this proof is posted at CTK, though there it is in purely algebraic form: http://www.cuttheknot.org/pythagoras/cosine.shtml http://www.cuttheknot.org/pythagoras/ ... kach.shtml [attachment=0:3jym45ln]Cosines PWW.pdf[/attachment:3jym45ln] 

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