Asked by Bae

Use the ratio or the root test to determine the convergence of the series:
Sum of infinity and n=1 of arctan(e^-n), Sum of infinity and k=1 of sqroot(3^k)/(2^k)

Answers

Answered by Steve
the 2nd one is just (3/2)^(k/2) so it of course diverges.

so, what do you get for arctan?
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