# Derivative of exponential functions

## `Derivative of exponential functions`

> It's save a lot of time of life not to dig in how mathematicians developed these formulas. If you do want to, [refer to Khan's lecture: Exponential functions differentiation intro](https://www.khanacademy.org/math/ap-calculus-ab/ab-derivatives-advanced/modal/v/exponential-functions-differentiation-intro)

Reminder: **Don't forget it's a** `composite function` **and you need to apply the chain rule.**

![image](https://user-images.githubusercontent.com/14041622/40298682-8ae4c95a-5d16-11e8-8115-1363d8ae637c.png)

## `Derivative of log functions`

![image](https://user-images.githubusercontent.com/14041622/40300440-d3893a06-5d1b-11e8-9103-4461535d8023.png)

## Examples

Find the derivative of: ![image](https://user-images.githubusercontent.com/14041622/40298914-3a2b92f4-5d17-11e8-884e-be6cf50eb431.png) Solve:

![image](https://user-images.githubusercontent.com/14041622/40298961-6157e9e0-5d17-11e8-8f73-56ca14655ccf.png)
