Question:
Trigonometry - Period and Amplitude
The model for the height of a tidal wave for a 24 hour period is given by H(t) = 1.25 + 0.85 cos 0.498(t - 1) where H(t) is the height of the tide in meters at a time t measured in hours from midnight.
(a) What is the period of the wave?
(b) What is the greatest height of the wave?
(c) At what time will high tide first occur?