find the interval and radius of convergence for sum from n=1 to infinity of . So I used the ratio test and I've got it down to . I want to use L'Hospitals rule but I'm uncertain how to proceed. Can I use L'H rule on or do I use it on
find the interval and radius of convergence for sum from n=1 to infinity of . So I used the ratio test and I've got it down to . I want to use L'Hospitals rule but I'm uncertain how to proceed. Can I use L'H rule on or do I use it on