Rates of change/ related rates unit

1. The temperature (in degrees Celsius) of a chemical reaction is modelled by the following function Q(t) = e-1it - ett, t20 where t is the number of seconds elapsed after the start of the reaction. (Round all of your answers to 3 decimal places, and don't forget the units!) (a) What is the temperature of the reaction 1 second in? (b) What s the rate of change of the temperature after 1.5 seconds? (c) At what time does the temperature begin to increase