File:Ptolemy cos.jpg

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Español: Demostració del teorema del cosinus a partir del teorema de Ptolomeu.
English: Diagram used in a proof of the Law of Cosines using Ptolemy's theorem.
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Source Own work. Transferred from en.wikipedia to Commons. (originally uploaded at en:Image:Ptolemy_cos.jpg)
Author Neil Parker
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Date/TimeThumbnailDimensionsUserComment
current18:57, 16 March 2008Thumbnail for version as of 18:57, 16 March 2008783 × 1,023 (41 KB)JRGomà (talk | contribs){{Information |Description=Demostració del teorema del cosinus a partir del teorema de Ptolomeu |Source=http://en.wikipedia.org/wiki/Image:Ptolemy_cos.jpg |Date=14:33, 6 December 2007 |Author=Neil Parker |Permission= |other_versions= }}

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