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Find the sum

Algebra Level 2

Find the sum of $n$ terms of the series.
$\sqrt{2} + \sqrt{8} + \sqrt{18} + \sqrt{32}+ \cdots$

\frac {n(n+1)}{2}

\frac {\sqrt{2} × n(n+1)}{2}

2n(n+1) n ×

\sqrt{2}

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by Sonveer Yadav

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