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Scott Martinez 2022-06-02 Answered
How to prove the limit lim n n sin 2 π n cos 1 n doesn't exist?
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Answers (1)

Dolharf1t1y
Answered 2022-06-03 Author has 1 answers
The limit does exist, one may just write, as n ,
n sin 2 π n cos 1 n = ( 2 π ) × sin 2 π n 2 π n × cos 1 n 2 π × 1 × 1 = 2 π .

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