(( n - 1)/(n+1))^n² by using root criteria for series convergence I arrived to this:
((n-1)/(n+1))^n I don't remember how to trasform it in
(1-2/n)^n -> e^-2
Does it correct do this:
(n-1)/(n+1) -> [I don't remember this!! ] (n-1-1)/n and a then (n-2)/n (1-2/n) ??
Thx 2 all
Last edited by seerj (2006-01-27 03:50:05)