A brief look at the origins of the trigonometric functions, how to understand them geometrically, and where their names come from. Thanks for watching!
Basically this is a proof of tan𝜃 ≡ sin𝜃/cos𝜃, with some context.
❤️ ❤️ ❤️ Support the channel ❤️ ❤️ ❤️
https://www.youtube.com/channel/UCf89Gd0FuNUdWv8FlSS7lqQ/join