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up vote 0 down vote favorite I have rtorrent installed and I am trying to run this command so it runs automatically on startup: screen -S rtorrent -d -m su root -c "rtorrent" I added it to: nano /etc/rc.local But nothing seems to happen when I reboot. If I type it in my terminal, it comes up fine without a problem? Why? boot centos rtorrent share | improve this question edited Nov 16 at 3:32 Worthwelle 2,183 2 7 24 asked Nov 14 at 19:39 Abu Stouf 1 1 ...

up vote 0 down vote favorite Let S = $sum_{n=1}^{infty}{frac{n^k}{((n^3+n)^{frac{1}{3}}-n)}},forallspacespacespacespace kinmathbb{Z}.$ Say if this series converge of diverge. My attempt: $$S=sum_{n=1}^{infty}frac{(n^3+n)^{frac{2}{3}}+n(n^3+n)^{frac{1}{3}}+n^2}{n^{1-k}}$$ Ratio test in undecisive, and Raabe-Duhmal test gave me again $1$ so what test should I use? It is clear that the general term of these series $to0$ iff $1-k<2implies k>1$ and divergent for $k<1$ . sequences-and-series real-numbers numerical-calculus share | cite | improve this question edited Nov 14 at 11:23 Crazy for maths ...