Szeregi odc7. Kryterium Cauchy'ego czy d'Alemberta? Jak się zdecydować?

Are there any tricks to choosing a good criterion for determining whether a given series converges or diverges? Sometimes it turns out that we can use different criteria, but there are cases where one criterion will solve the problem much faster than another. And of course, there are cases where the criterion choice is so inappropriate that we won't be able to compute a limit, or computing it won't solve the problem. You'll find some tips on how to choose between Cauchy's and d'Alembert's criteria in this episode.