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

Differentiate f = arctan(u/v) with respect to u

3. The attempt at a solution

Using the chain rule

f_{u}= (1/(1 + (u/v)^{2})) * 1/v = 1/(v + u^{2}/v)

The solutions manual says v/(u^{2}+ v^{2})

What is my mistake?

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

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: Simple partial differentiation

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