Hint: Think about the function f(t) = a + b*cos(ct) for constants a, b, and c.
A periodic function oscillates between the values and . It has a minimum at and the immediately following maximum at Find a simple trig function with these properties
y(t) = ?
What percent of the time is this function greater than 10?
I have no clue what i am doing here. im assuming i find critical points after i find the function but i dont really know how to go about this.
Hint: For a minimum, when does the cosine have a minimum (look at a standard cos graph to see it or use calculus to find the minimum)?
Hint: Do the same thing but for a maximum (when does the cosine function have a maximum)?