4:53

Proof of the derivative of cosx: A Step-by-Step Proof and Explanation

14:35

Lambert W Function

5:48

Mathematical Induction: Proof of Series

5:27

Limit of sin(x)/x: Detailed Explanation and Proof

5:40

Proof of the derivative of inverse sin x: A Step-by-Step Proof and Explanation

7:32

derivative of sin(x) by using the definition of derivative

10:20

Why are sin, cos and tan called sin, cos and tan?

6:09

Proof of the derivative of tanx: A Step-by-Step Proof and Explanation