If phi(x)=lim(x->oo)(x^(2n)(f(x)+g(x)...

If `phi(x)=lim_(x->oo)(x^(2n)(f(x)+g(x)))/(1+x^(2n))` then which of the following is correct

A

`b=a-1`

B

`b=a+3`

C

`a=b-2`

D

`b=0, a in R`

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The correct Answer is:

B

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