Hey guys!

Final question....finally! Can anyone help me with it please??

Investigate the convergence of the series

$\displaystyle \sum_{n=1}^{\infty}\frac{(-1)^{n-1}}{2n-1}$,$\displaystyle \sum_{n=1}^{\infty}\frac{(-1)^{n-1}}{n^{\frac{3}{2}}}$

Thanks guys!

Jo