Question: 18. lim an+1 (n + 1)! n n 1 = lim n (n+ 1)n lim = lim lim an +1 18. lim series n 1

an +1 18. lim series n 1 nn 1 lim (n +

I)n+l n! lim (n + I)n+l lim 1 1, so the is

18. lim an+1 (n + 1)! n n 1 = lim n" (n+ 1)n lim = lim lim

an +1 18. lim series n 1 nn 1 lim (n + I)n+l n! lim (n + I)n+l lim 1 1, so the is absolutely convergent by the Ratio Test.

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