Question

Let f be the function defined by f(x)= sqrt2x-5. If g(x) =f^-1(x), What is the value of g'(x)

Answer 1

g(x) is the inverse of f(x),

Answer 2

just take the derivative of f^-1(x)

Answer 3

Write g(x), taking the opposite functions from f(x)
g(x) = (1/2)(x^2+5)