AP Calculus AB Unit 7.6: Particular Solutions

The depth of seawater at a location can be modeled by the function H that satisfies the differential equation $\frac{d H}{d t}=\frac{1}{2}(H-1) \cos \left(\frac{t}{2}\right)$, where H(t) is measured in feet and t is measured in hours after noon ( t=0 ). It is known that H(0)=4.

Use separation of variables to find y=H(t), the particular solution to the differential equation $\frac{d H}{d t}=\frac{1}{2}(H-1) \cos \left(\frac{t}{2}\right)$ with initial condition H(0)=4.

Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part.