One hour after x milligrams of a particular drug are given to a person, the change in body temperature T (in degrees Fahrenheit) is given by T(x) = x² (1-²) 0≤x≤6 9 a. What is the average temperature when the drug dosage changes from 2 to 4 milligrams? b. Use differentials to estimate the change in temperature produced by the change from 3 to 3.2 milligrams in the drug dosage. C. What is the interpretation of T'(3)?