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If xn=(1-2+3-4+5-6+...-2n)/(sqrt(n^2)+1+...

If `x_n=(1-2+3-4+5-6+...-2n)/(sqrt(n^2)+1+sqrt(4n^2)-1)`, then `lim_(n rarr infty)x_n` is equal to

A

`1/3`

B

`-2/3`

C

`2/3`

D

1

Text Solution

Verified by Experts

The correct Answer is:
B
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