Revision history of "Double angle formulas"

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  • (cur | prev) 18:42, 9 June 2017‎ Alec (Talk | contribs)‎ . . (951 bytes) (+951)‎ . . (Created page with "==Statement== The "''double angle formulas''" refer to the following two formulas * {{M|\forall \varphi,\psi\in\mathbb{R}[\sin(\varphi\pm\psi)\eq\sin(\varphi)\cos(\psi)\pm\cos...")
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