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Questions  >>  CBSE XI  >>  Math  >>  Sequences and Series
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Find the sum of $n$ terms of the series whose $n^{th}$ term is $(2n-1)^2$

$\begin{array}{1 1}\large\frac{n(4n^2-5)}{3} \\\large\frac{n(4n^2+1)}{3} \\\large\frac{n(4n^2-1)}{3} \\\large\frac{n(4n^2-n-1)}{3} \end{array} $

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