Tweeted By @fermatslibrary
Here's a visual proof that
— Fermat's Library (@fermatslibrary) September 2, 2021
sin2x = 2sinxcosx
cos2x = cos²x−sin²x pic.twitter.com/hSnoMXIwmC
Here's a visual proof that
— Fermat's Library (@fermatslibrary) September 2, 2021
sin2x = 2sinxcosx
cos2x = cos²x−sin²x pic.twitter.com/hSnoMXIwmC