In: Math
For a positive constant b, the surge function f(t) = te−bt gives the quantity of a drug in the body for time t ≥ 0 where t is in hours. (a) Find the absolute maximum and minimum of f for t ≥ 0. Your answer will be in terms of b. (b) Find the value of b that gives an absolute maximum for f at t = 10.
Please break down how to second derivative is done. This is the part I am stuck on