The derivative of sin(x degrees) -- or why we use radians
15:29
a beautiful differential equation
11:23
my new favorite proof of this classic result
24:48
Why Do We Use Radians in Calculus?
20:20
exact value of sin(10 degrees)
34:39
Derivative of sin x and cos x
21:26
a very interesting differential equation
14:35
the famous Calculus proof of the Pythagorean theorem.
18:20