अनुक्रम \( \sqrt{2}+\sqrt{8}+\sqrt{18}+\sqrt{32}+\cdots \) के \( n \)-पदों का योगफल है: (A) \( \...
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अनुक्रम \( \sqrt{2}+\sqrt{8}+\sqrt{18}+\sqrt{32}+\cdots \) के \( n \)-पदों का योगफल है:
(A) \( \frac{n(n+1)}{2} \)
(B) \( 2 n(n+1) \)
(C) \( \frac{n(n+1)}{\sqrt{2}} \)
(D) 1
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