Math Help - can you help me ?

1. can you help me ?

lim(n->∞)[(1+3+5+.......(2n+1)]/n^2]^(3-2n)
I do not know how to solve it, you give me a detailed answer?

2. Re: can you help me ?

Show that limit general term of the series approaches infinity and hence summation approaches infinity:

$\lim_{n\to \infty } \, \left(\frac{2n+1}{n^2}\right)^{3-2 n}\to \infty$