How do I solve this question?

1 1. (2+4+4=10 marks/ Consider a function f(a) = which has the derivatives 1 - In(154x) In (154x) + 1 f'(x) = 7 x(1 - In(154x))2 and f"(x) = 12 (In (154x) - 1)3 (a) /2 mark Find the domain. State it using interval notation. (b) /4 marks) Find the intervals on which f(x) is increasing or decreasing and classify the local extreme values (if they exist) (c) (4 marks) Determine f(x) is concave up or down and find the inflection points