x^n/n! = 0 for n-> 0
using sandwich theorem
a sequence given by a(n+1) = SQRT(2 + an)
prove that it is converging.. I found the limit is 2.. but how to prove it converges?
prove that if an converges to a and bn converges to b then an/bn converges to a/b using the theorem |an-l| < E for all n > N and for any E > 0