For a certain drug, the rate of reaction in appropriate units is given by R'(t)= 2/t+1 + 3/Sqrt(t+1) where t is time (in hours) after the drug is administered, find the total reaction to the drug over the following time periods. a. From t=1 to t=8 b. From t=8 to t=24 a. The total reaction is. (Then round to three decimal places as needed) b. The total reaction is (Then round to three decimal places as needed)