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

[tex]\Sigma[/tex]2^{n}n!/(n+2)!

2. Relevant equations

I'm using the ratio test because there are factorials but I'm a little stuck on whether or not to factor out

3. The attempt at a solution

lim 2^{n+1}(n+1)!/(n+3)!*(n+2)!/2^{n}(n)! After I set it up here I'm not sure of how to factor out the factorials. would it end up looking like 2(n+1)(n+2)/(n+3) ?

**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: Ratio Test for series convergence factoring problems

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