If g(x) is the inverse function of f(x) and, then g'(x) is
1 + [g(x)]4
1 - [g(x)]4
1 + [f(x)]4
A.
1 + [g(x)]4
If the volume of spherical ball is increasing at the rate of 4 cm3/s, then the rate of change of its surface area when the volume is 288 cm3, is