20 Points Which one of the following series is convergent? (4 points) the summation from 1 to infinity of the quotient of 1 and the quantity n plus 2
the summation from 1 to infinity of the quotient of the inverse tangent of n and the quantity 1 plus n squared
the summation from 1 to infinity of the quotient of n and the sum of 1 and n squared
the summation from 1 to infinity of the quotient of 1 and the 5th root of the quantity 2 times n minus 1