Let `f : R - {-15 /2} -> R - {1/2}` be defined by `f(x) = (x+10)/(2x +15)` then f(x) is

Let f: R to R be defined by f(x) = 5^(2x)/(5^(2x) + 5) , then f(x) + f(1-x) is equal to

If f: R to R is defined by f(x)=(x^(2)-4)/(x^(2)+1) , then f(x) is

If f: R rarr R is defined by f(x) = x/(x^2 +1) then f(f(2)) is

Let, f: R rarr R be defined by f(x) = 2x + cos x, then f

Let f:R rarr R be defined by f(x)=(x)/(x^(2)+1) Then (fof(1) equals

Let f : R-{1} to R be defined by f(x) =(1+x)/(1-x) AA x in R -{1} then for x ne +-1, (1+f(x)^(2))/(f(x)f(x^(2))) =………….

If f: R to R is defined by: f(x-1) =x^(2) + 3x+2 , then f(x-2) =

If f :R to R is defined by f (x) =(x )/(x ^(2) +1), find f (f(2))