can someone link/show me a formal proof of the multivariable chain rule?(adsbygoogle = window.adsbygoogle || []).push({});

**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!

# Multivariable chain-rule proof?

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