The difference between the sum of the cubes of first n natural numbers and squares of first n natural numbers is
The sum of cubes of first n natural numbers = n2(n+1)24
The sum of squares of first n natural numbers = n(n+1)(2n+1)6
The harmonic mean of sum of first n natural numbers and sum of cubes of first n natural numbers is
The remainder obtained when the sum of squares first n odd natural numbers is divided the sum of squares of first n even natural numbers is