https://en.formulasearchengine.com/api.php?action=feedcontributions&feedformat=atom&user=71.114.103.241formulasearchengine - User contributions [en]2026-05-25T16:24:05ZUser contributionsMediaWiki 1.43.0-wmf.28https://en.formulasearchengine.com/index.php?title=Proofs_of_trigonometric_identities&diff=251128Proofs of trigonometric identities2014-12-31T18:00:41Z<p>71.114.103.241: /* Pythagorean identities */ Deleted some nonsense</p>
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