`f(x)+f(y)=f((x+y)/(1-xy))` ,for all`x,yinR`.`(xy!=1)`,and `lim_(x->0) f(x)/x=2`.Find`f(1/sqrt3)`and `f'(1)`.

f(x)+f(y)=f((x+y)/(1-xy)) ,for allx,yinR.(xy!=1),and lim_(x->0) f(x)/x=2.Findf(1/sqrt3)and f'(1).

f(x)+f(y)=f((x+y)/(1-xy)) ,for all x,yinR . (xy!=1) ,and lim_(x->0) f(x)/x=2 .Find f(sqrt3) and f'(-2) .

f(x)+f(y)=f((x+y)/(1-x y)) for all x ,y in Rdot (x y!=1) ,and lim_(xto0)(f(x))/x=2 .Find f(1/(sqrt(3)))a n df^(prime)(1)dot

"If "f(x)+f(y)=f((x+y)/(1-xy))" for all "x,y in R, (xyne1), and lim_(xrarr0) (f(x))/(x)=2" then find "f((1)/(sqrt(3))) and f'(1).

"If "f(x)+f(y)=f((x+y)/(1-xy))" for all "x,y in R, (xyne1), and lim_(xrarr0)(f(x))/(x)=2" then find "f((1)/(sqrt(3))) and f'(1).

"If "f(x)+f(y)=f((x+y)/(1-xy))" for all "x,y in R, (xyne1), and lim_(xrarr0)(f(x))/(x)=2" then find "f((1)/(sqrt(3))) and f'(1).

If f(x)+f(y)=f((x+y)/(1-xy))x>y in R,xy!=1,lim_(x rarr0)(f(x))/(x)=2. Find f(5),f'(-2)

If f(x) + f(y) = f((x+y)/(1-xy)) for all x, y in R (xy ne 1) and lim_(x rarr 0) (f(x))/(x) = 2 , then

If f(x) + f(y) = f((x+y)/(1-xy)) for all x, y in R (xy ne 1) and lim_(x rarr 0) (f(x))/(x) = 2 , then

If f(x+y)=f(x)f(y) for all x,yinR and f(5)=4 and f'(0)=2 , then find f'(5)