JEE Main 202116 Mar, Evening shiftMathematicsMediumLimit, Continuity and Differentiability420× since 2002
Let f : S S where S = (0, ) be a twice differentiable function such that f(x + 1) = xf(x). If g : S R be defined as g(x) = log_e f(x), then the value of |g''(5) g''(1)| is equal to :