Question

Differentiate f and find the domain of f.
f(x) = x/[1-ln(x-1)]

Answer 1

f(x) = [2x - 1 - (x-1) in (x - 1)] / [ 1 - in(x-1)]^2

domain of f =  (1,  1+e)  U (1 + e, infinty)

hope this helps