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Revision history of "Product-to-sum and Sum-to-Product identities"

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  • (cur | prev) 10:55, 10 May 2024‎ Shadow sniper (talk | contribs)‎ . . (1,012 bytes) (+1,012)‎ . . (Created page with "==Sum-to-Product identities== Here are the sum-to-product identities: \begin{align*} \sin (x) + \sin (y) &= 2 \sin \left(\frac{x + y}{2}\right) \cos \left(\frac{x - y}{2}\rig...")
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