Dis is a very easy Jee problem (1991) n most of us can surely do it. Try it! The correct reply will be rated!!!

 

If S₁, S₂, S₃, ...., S_n are sums of infinite geometric series whose first terms are 1, 2, 3, ...., n and whose common ratios are 1/2, 1/3, 1/4, ...., 1/(n+1) respectively, then find the value of S₁^2 + S₂^2 + S₃^2 +.....+S_2n-1^2.