What is the difference between comprehensive and collision coverage in an auto policy

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

If value of cos330° is √3/2 then find tan165°.