Solving Sum of n+1^n/n^(n+1) - Diverges?

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Can I use this logic?

Homework Statement



I'm wondering if I can use this kind of logic to solve:

\sum\frac{(n+1)^n}{n^{(n+1)}} Converges or diverges

The Attempt at a Solution



\frac{(n+1)^n}{n^{(n+1)}} \geq \frac{(n)^n}{n^{(n+1)}}

And

\frac{(n)^n}{n^{(n+1)}} = n , which diverges

Therefor:

\sum\frac{(n+1)^n}{n^{(n+1)}} Diverges
 
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Yes. So long as it's true for all n and n > 0.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...

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