Thursday 30 March 2017

calculus - How to find $ lim_{ntoinfty}frac{sin(1)+sin(frac{1}{2})+dots+sin(frac{1}{n})}{ln(n)}$


$$ \lim_{n\to\infty}\frac{\sin(1)+\sin(\frac{1}{2})+\dots+\sin(\frac{1}{n})}{\ln(n)}
$$




I tried applying Cesaro Stolz and found its $(\sin 1/(n+1))/\ln(n+1)/n$ where $\ln$ is $\log_e$ and it would be $1$ and so the limit is $0$, but in my book the answer is $2$. Am I doing something wrong or can't Cesaro be applied here?

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