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OpenStudy (anonymous):
i need help on calc 2 sequences: Prove whether the sequence is convergent or divergent and if it is convergent, find it's limit: an= cos n/n!
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OpenStudy (anonymous):
\[-1\le\cos n\le1~~\implies~~-\frac{1}{n!}\le\frac{\cos n}{n!}\le\frac{1}{n!}\]
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