Calculus: The Root Test for convergence of series checks the limit of the nth roots of the nth term of the sequence. This series test works best when the general term has exponent n. We test the examples (a) sum 2^n/n^n, (b) sum [n/ln(n)]^n, and (c) the general geometric series. For more videos like this one, please visit the Calculus playlists at this channel.
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