Chapter 1.10, Problem 11P

To determine

(a)

To find:

Whether $y=2+2\sin \left(\frac{\pi }{3}t\right)$ is the best formula for the volume of air in the person’s lungs as a function of time.

To determine

(b)

To find:

Whether $y=3+\sin \left(\frac{2\pi }{3}t\right)$ is the best formula for the volume of air in the person’s lungs as a function of time.

To determine

(c)

To find:

Whether $y=2+2\sin \left(\frac{2\pi }{3}t\right)$ is the best formula for the volume of air in the person’s lungs as a function of time.

To determine

(d)

To find:

Whether $y=3+\sin \left(\frac{\pi }{3}t\right)$ is the best formula for the volume of air in the person’s lungs as a function of time.