If `f(x) = x/2+2/x` then find `f'(x)`

If f(x)=A x^2+B x+C then find f '(x)

If f(x)=x^(2)-4 then find f'(2).

If f(x) = x^2 - 3x + 4 , then find the values of x satisfying the equation f(x) = f(2x + 1) .

Let f(x)=x^4-x^3 then find f '(2)

If f(x)=x^2+2x+7 , find f\ '\ (3) .

If f :[2,oo)rarr(-oo,4], where f(x)=x(4-x) then find f^-1(x)

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

If f((x+y)/3)=(2+f(x)+f(y))/3 for all x,y f'(2)=2 then find f(x)

If f(x)=(x-4)/(2sqrt(x)) , then find f'(1)

Ilf f(x)={x^3, x 2 , then find the value of f(-1)+f(1)+f(3) . Also find the value (s) of x for which f(x)=2.