so, i should use D'Alambert rule. Then i got and what now?
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Acknowledging that and Your ratio can be simplified to So the series converges.
Last edited by SworD; September 13th 2012 at 06:29 PM.
Originally Posted by DonnieDarko so, i should use D'Alambert rule. Then i got and what now? Simplify. . But , and , so as .
Last edited by johnsomeone; September 13th 2012 at 06:55 PM.
johnsomeone, your post contains an error. The term with the exponent should be in the denominator.
Thanks. It's hard to "see" algebra in LaTex!
Thanks you guys a lot
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