Question

Find if these series converge or diverge. Include the name of the test used to determine this.

\sum_{n=1}^{infinity} cos(1/n)

\sum_{n=1}^{infinity} (3n^4-7n^3)/(n^7+n^2+6n+1)

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Answer #1

Z cos (6) Abbly - Diuo gence theorem for senes. If lim an to. of DNE. then series 8 Wil Ź an dinlegges. lim C Here An= cos noEbn no It is converging doocs 13. n =) because p-331 bna an lim ho bn lim 3n4 -703 na+n2+60+ no 43 lim ho h 3 (3n 64-713) th

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