The value of lim(x->0)[(1-2x)^nsum(r=0)^...

The value of `lim_(x->0)[(1-2x)^nsum_(r=0)^n_r((x+x^2)/(1-2x))^r]^(1/ x)` is :

A

`e ^(n)`

B

`e ^(-n)`

C

`e ^(3n)`

D

`e ^(-3n)`

Verified by Experts

The correct Answer is:

B

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