Hi,(adsbygoogle = window.adsbygoogle || []).push({});

I need help in proving the equation in the attachment.

Thanks

darkfeffy

**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: Proving a discrete sum

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