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Question Id : 3754 | Context :NIMCET 2018

Question

If the mean of the squares of first n natural numbers be 11, then n is equal to?
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Ask Your Question or Put Your Review.
Kartik-pic
Kartik , CUETVerified
Commented May 28 , 2024
Sum of square of n number is n(n+1)(2n+1)/ 6.