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October 25, 2014

Homework Help: pre calc

Posted by ziya on Tuesday, November 27, 2012 at 11:00am.

If Sn represents the sum of the squares of the first n natural numbers, use proof by induction to find which of the following expressions for Sn is true?

Sn=n(n-1)/(3)
Sn=n(2n-1)/(3)
Sn=n(n+1)/(3)
Sn=n(n+1)(2n+1)/(3)

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