(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Let's take two problems, the derivative of

2^{x}

and

x^{π}

For the second one the book says that answer is

πx^{π-1}

Well if you can do that for the above, then why not for the first problem?

The book gives the answer to the first problem as

2^{x}ln 2

why not x2^{x-1}?

essentially what i need to know for finding derivatives, there are two techniques.

1. nx^n-1

2. k^x ln k

when do I use which technique?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Derivative of 2^x

**Physics Forums | Science Articles, Homework Help, Discussion**