sir plz solve it within 10 mins plz

F(x)= Visinrat a) Find F'(x) for x > 0 identify the points a > 0 F'(a) = 0 b) Decide whether F has a local maximum at the smallest critical point a > 0 that you found in part (a ) by evaluating F*. c) Say whether F(x) is positive, negative or zero at each of the following points, and give a reason in each case. i)x-0 inx-x