What are the limit points of a sequence {an}=n+((cosn)÷2) [closed]

Plz help me to find the limit points of these sequence.

closed as off-topic by Did, KM101, Claude Leibovici, mrtaurho, Arnaud D.Jan 11 at 10:44

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We have that $$a_n > n-1$$ for all $$n$$. Thus $$a_n \to \infty$$ as $$n \to \infty.$$