Evaluate ` sum_(n=2)^(infty)sqrt(n)/(ln(n)) `
This series does not converge.
If the series converges, then the limit of its nth term must be 0 as n grows without bound. Using L'Hopital's rule we show that the limit does not exist:
`lim_(n->oo)sqrt(n)/(ln(n))=lim_(n->oo)(1/(2sqrt(n)))/(1/n) `
`=lim_(n->oo)n/(2sqrt(n))=lim_(n->oo)(sqrt(n))/(2) = oo `
Comments
Post a Comment