In the month of March, the temperature at the
South Pole varies over the day in a periodic way
that can be modeled approximately by a
trigonometric function.
The highest temperature is about -50°C, and it is
reached around 2 p.m. The lowest temperature is
about -54°C and it is reached half a day a apart
from the highest temperature, at 2 a.m.
Find the formula of the trigonometric function
that models the temperature T in the South Pole
in March t hours after midnight. Define the
function using radians.