How can it be proved that Rnl(r) has (n-l-1) zeros (not counting those at r-0 and r= infinity?(adsbygoogle = window.adsbygoogle || []).push({});

I tried doing this inductively but found it hard to get anywhere since the equations for Rnl(r) aren't too pretty. For instance, Rnl(r)=Anlunl

where Anl= sqrt((n-l-1)!/(2n((n+l)!)^3)

this last equation seems to bear a similarity with what I am supposed to prove but I am having trouble with this. Help anyone?

**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!

# Interesting proof

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