Verify that the function has the following properties, where t is measured in days and D is the number of hours between sunrise and sunset.

a. It has a period of 365 days.

b. Its maximum and minimum values are 14.8 and 9.2, respectively,which occur approximately at t = 172 and t = 355, respectively (corresponding to the solstices).

c. D(81) = 12 and D(264) ≈ 12 (corresponding to the equinoxes).

Transcribed Image Text:

-в) 2т (г — 81) ) + 12 365 D(t) = 2.8 sin