f(x)=Lim(x->oo)(x^(2n)-1)/(x^(2n)+1)...

`f(x)=Lim_(x->oo)(x^(2n)-1)/(x^(2n)+1)`

A

`f(x)=1` for `|x|gt1`

B

`f(x)=-1` for `|x|lt1`

C

`f(x)` is not defined for any value of x

D

`f(x)=1` for `|x|=1`

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The correct Answer is:

A, B

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