Does this series converge?

[ma-ka-01]

∑cos(2n)/2n , n≥1

 

[Deleted member 4993]

∑cos(2n)/2n , n≥1

What methods have you been taught to investigate such questions?

What is \(\displaystyle \lim_{n \to \infty}\left[\frac{cos(2*n)}{2*n}\right]\)

Please show us what you have tried and exactly where you are stuck.

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Please share your work/thoughts about this assignment.

 

[pka]

\(\displaystyle\sum\limits_{n = 1}^\infty {\frac{{\cos (2n)}}{{2n}}} \) HINTS