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Mathematics 20 Online
OpenStudy (anonymous):

radius and interval of convergence of.... ( (-1)^n*x^n )/ (a^n*ln n), a>0 and n goes from 2 to infinity. ratio test??

OpenStudy (anonymous):

r = lim n->inf { t(n)/t(n+1) }

OpenStudy (anonymous):

ratio test

OpenStudy (anonymous):

then solve for |r|<1 to get the interval

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