Differentiable Function: Meaning, Formulas and Examples | Outlier

Differentiability of Functions | Overview, Equation & Examples

Differentiability at a point: algebraic (function isn't differentiable)

The Chain Rule Made Easy: Examples and Solutions – mathsathome.com

Choose the correct alternative: The number of points in R in which the function f(x) = |x – 1| |x – 3| sin x is not differentiable, is - Mathematics | Shaalaa.com