The sum of square of the first n natural numbers is given by _________
Posted: Thu Jul 14, 2022 9:00 am
a) n(n+1)(2n+1)/6
b) n(n-1)/2(2n+1)
c) n2(n+1)(2n+1)/6
d) None of the mentioned
b) n(n-1)/2(2n+1)
c) n2(n+1)(2n+1)/6
d) None of the mentioned