Use D'Alembert's ratio test to determine the convergent of the following series(hint:Find the general term first)
i)
the general term:
so is it:
is it correct? i don't know how to solve the limit...please help me....
ii)
general term
is it
limit = 1
convergent
iii)
general term :
limit 2
2>1, divergent
please help guide & correct me, all help appreciated..thank you & regards