Where do cosh and sinh come from?
In this video, I derive the formulas for cosh and sinh from scratch, and show that they are indeed the hyperbolic versions of sin and cos. I also explain what the input x of cosh(x) means. Included is a calculation of the integral of sqrt(x^2-1) Note: A big thanks to Alex Zorba, who came up with the idea and the proof, thank you 🙏
▶︎
Derivative of ln x
▶︎
Why hyperbolic functions are actually really nice
▶︎
Why don't they teach simple visual logarithms (and hyperbolic trig)?
▶︎
The Limit (do not use L'Hospital rule)
▶︎
Hyperbolic trig functions | MIT 18.01SC Single Variable Calculus, Fall 2010
▶︎
the parabolic trig functions
▶︎
The complex relationship between regular and hyperbolic trig functions
▶︎
The applications of hyperbolic trig | Why do we even care about these things?
▶︎
a golden integral
▶︎
When Math Isn’t Based in Reality
▶︎
Hyperbolic Trig Functions THE HARD WAY
▶︎
My new favorite function?
▶︎
Train Your Brain to Never Forget (5 Feynman Habits)
▶︎
Definitions of Cosh and Sinh
▶︎
integral of sin(x)/x from 0 to inf by Feynman's Technique
▶︎
Some geometry behind the Basel problem
▶︎
The Secret Connection between Hyperbolic and Trigonometric Functions...
▶︎
Derivatives of all hyperbolic functions (proofs)
▶︎
e to the pi i for dummies
▶︎