SOLUTION: The sum of first 20 terms of the series 1,4,9,16.......

SOLUTION: The sum of first 20 terms of the series 1,4,9,16.......

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Question 967771: The sum of first 20 terms of the series 1,4,9,16.......
Answer by satyareddy22(84) (Show Source): You can put this solution on YOUR website!
sum of squares of first n natural numbers = n(n+1)(2n+1)/6
n=20
= 20(20+1)(40+1)/6
=20(21)(41)/6
=2870
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