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underset( n to infty )lim (1)/( n^(3)) (...

`underset( n to infty )lim (1)/( n^(3)) (sqrt( n^(2) +1) +2sqrt( n^(2) +2^(2))+....+nsqrt( n^(2) + n^(2))) =(( a)^(3/2)-1)/( sqrtb) , ` जहाँ ` a,b,in N` है , तो (a +b ) बराबर है

A

` 11`

B

` 13`

C

` 45`

D

` 17`

लिखित उत्तर

Verified by Experts

The correct Answer is:
D
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