The daily energy requirements of female beagles who are at least 1 year old change with respect to time according to the function E(t) = 753t^-0.1321, where E(t) is the daily energy requirement (in kJ/W^0.67), where W is the dog’s weight (in kilograms) for a beagle that is t years old.

(a) Assuming 365 days in a year, show that the energy requirement for a female beagle that is t days old is given by E(t) = 1642t^-0.1321.
(b) Using the formula from part (a), determine the total energy requirements (in kJ/W^0.67) for a female beagle between her first and third birthday.