f(x) = |x|/x. Find f(-3)

Given f(x)=3x+2 . Find f^(-1)(x)

A function f(x) is defined as f(x)=x^2+3 . Find f(0), F(1), f(x^2), f(x+1) and f(f(1)) .

Let f (x) =x ^(3)-3x Find f (f (x))

If f'(x) = 1/x + x^2 and f(1)=4/3 then find the value of f(x)

The function f is defined by f(x)={{:(x+3" if ",xlt1),(x^(2)" if ",xge1):} . Find f(-5),f(1), and f(3) .

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) .

Let f (x)= x^3 -3x+1. Find the number of different real solution of the equation f (f(x) =0

Given the function f(x) = x^(3) - 1 . Find f(1), f(a), f(a+1).

If f: R->R is defined by f(x)=3x+2 , find f(f(x)) .

let f(x) be a polynomial satisfying f(x) : f(1/x) = f(x) + f(1/x) for all X in R :- {O} and f(5) =126, then find f(3).