Let `f(x)=lim_(nrarroo)((x^(2)+2x+4+sinpix^(n))-1)/((x^(2)+2x+4+sinpix^(n))+1)`, then

let f(x)=lim_(n rarr oo)(x^(2n)-1)/(x^(2n)+1)

Let f(x)=lim_(n rarr oo)(log(2+x)-x^(2n)sin x)/(1+x^(2n)) then

Let f(x)=lim_(ntooo) (x)/(x^(2n)+1). Then

Let f(x)=lim_(ntooo) (x)/(x^(2n)+1). Then

Let lim_(n->oo)((x^2+2x+3+sinpix)^n-1)/((x^2+2x+3+sinpix)^n+1) . then

Let f(x)=lim_(n->oo)(log(2+x)-x^(2n)sinx)/(1+x^(2n)) . then

The function f(x)=lim_(nrarroo)((x-2)^(2n)-1)/((x-2)^(2n)+1) (AA n in N) is discontinuous at

Let f(x)=lim_(nrarroo) sum_(r=0)^(n-1)(x)/((rx+1){(r+1)x+1}) . Then

Let for all x gt 0, f(x)=lim_(nrarroo)n^((x^((1)/(n))-1)) , then

If f(x)=lim_(nrarroo) ((x^(2)+ax+1)+x^(2n)(2x^(2)+x+b))/(1+x^(2n)) and lim_(xrarrpm1) f(x) exists, then The value of a is