Respuesta :
					                   f(f-1x)   will be equal to x
take a simple example
f(x) = 2x
so x = f(x) / 2
f-1(x) = x/2
f(f-1x) = 2 ( x/2) = 2 * x/2 = x
					                
					             take a simple example
f(x) = 2x
so x = f(x) / 2
f-1(x) = x/2
f(f-1x) = 2 ( x/2) = 2 * x/2 = x
					                   The range of f⁻¹(x) is the domain of f(x) and vice versa
The domain of f⁻¹(x) is the range of f(x) and vice versa
and for every x of te domain: f(f⁻¹(x)) = x and f⁻¹(f(x)) = x
					                
					                
					             The domain of f⁻¹(x) is the range of f(x) and vice versa
and for every x of te domain: f(f⁻¹(x)) = x and f⁻¹(f(x)) = x
 
			                  