The trend of covid cases in Ontario seems to be a

Last updated: 7/19/2022

The trend of covid cases in Ontario seems to be a neverending sinusoidal function of ups and downs. If the trend eventually becomes the seasonal flu over a 12-month period, with a minimum number impacted in August of 100 cases. Create an equation of such a cosine function that will ensure the minimum number of cases is 100. Note that the maximum cases can be any reasonable value of your choice. Assume 0 = December, 1 = January, 2 = February and so on.