great, that was what I thought but I wanted to make sure that what I got and the correct answer weren't just a great coincidence. Thanks for the fast reply! :)
Homework Statement
Find the limit:
an= 2n/(n2+1)1/2
Homework Equations
n/aThe Attempt at a Solution
Because n is approaching infinity, is it OK to disregard the +1 in the denominator and just consider the denominator to be n? This would then divide out the n in the numerator leaving 2...