Hi, I think I have an idea on how to solve a sequence problem but I could be going badly wrong. To verify if I used the right method I will ask somebody to help me with this question from Multivariable Calculus 6th Edition by James Stewart.

You have to find if {arctan 2n} converges, and if it converges to find its limit.

Do I have to find the limit of 0.218n + 0.889? The decimals are approximate so I don't think this could be it.