### Overview

In this session we apply the main formula for the derivative to the functions 1/x and x^n. We’ll also solve a problem using a derivative and give some alternate notations for writing derivatives.

### Lecture Video and Notes

#### Video Excerpts

Clip 2: Harder Problem: Triangles Under the Graph of y=1/x

Clip 3: Notation for Derivatives

### Worked Example

The Derivative of |x|