- #1
mickellowery
- 69
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Homework Statement
[tex]\Sigma[/tex]2nn!/(n+2)!
Homework Equations
I'm using the ratio test because there are factorials but I'm a little stuck on whether or not to factor out
The Attempt at a Solution
lim 2n+1(n+1)!/(n+3)!*(n+2)!/2n(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) ?