### Overview

This session introduces the technique of logarithmic differentiation and uses it to find the derivative of a^x. Substituting different values for a yields formulas for the derivatives of several important functions. Further applications of logarithmic differentiation include verifying the formula for the derivative of x^r, where r is any real number.

### Lecture Video and Notes

#### Video Excerpts

Clip 2: Derivative of ax, Logarithmic