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lim(x rarroo)(1-2+3-4+5-6+.....-2n)/(sqr...

`lim_(x rarroo)(1-2+3-4+5-6+.....-2n)/(sqrt(n^2+1)+sqrt(4n^2-1))` is equal to

A

`1/3`

B

`-1/3`

C

`-1/5`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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