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Grade 12th passAlgebra

13+3.22+33+3.42+53+2.62.............................................................................................................................to n terms

Profile image of Ankur Singh
7 Years agoGrade 12th pass
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1 Answer

Profile image of Deepak Kumar Shringi
7 Years ago
there are two series here
(2r-1)3and one more is 3(2r)2now do their sigma and apply formula for that
as sigma n =n(n+1)/2
and sigma n^2=n(n+1)(2n+1)/6

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