Determine whether the series is convergent o divergent and say what test you used to solve it.
(d) sum n=1 to infinity
(5n)^(3n) / (5^n + 3)^n
(e) sum k=1 to infinity
5 / sqr(2k - 1)
(d) sum n=1 to infinity
(5n)^(3n) / (5^n + 3)^n
(e) sum k=1 to infinity
5 / sqr(2k - 1)