ew Go Tools Window Help Q 8 Tu Lab 9_f21 p5.pdf Page 2 of 2 Q Q u 2 . @ Q search 3. [11 marks] Consider the function f(x) = 72 . Note that the domain of f(x) is (0, co). (a) Given that f'(x) = - 1-2In(x) , determine the open interval(s) on which f is increasing and on which f is decreasing. Show all work and leave results as exact values. (b) Given that f"(x) = 6In(2) -5 determine the open interval(s) on which f is concave down and on which f is concave up. Show all work and leave results as exact values. (c) Determine the locations of any absolute extrema of f(x) on [1.5, 3] In G