What is the big 0 of (2^n+n^2)(n^3+3^n).
I get that I foil this out. If I did this correctly, I get that this is O(6^n). Is this right or did I mess up somewhere?
The function log(log(n)) grows very, v e r y slowly. If the logs are based 10, it returns 2 for n=10¹⁰⁰, which is greater than the number of particles in the universe. Nevertheless, this function tends to infinity as n → ∞.
I am not sure what exactly you difficulty with log(log(n)) is. Feel free to post concrete questions about these functions.