An airplane flies at an altitude of 5 miles towards a point directly over an observer. The speed of the plane is 600 mph. Find the rates at which the angle of elevation theta is changing when...

10. An airplane flies at an altitude of 5 miles toward a point directly over an observer. The speed of the plane is 600 mile per hour. Find the rates at which the angle of elevation 0 is changing when the angle is (a) 0 = 30, (b) 0 = 60, and (c) 0 = 70. (10 points possible) 5 mi Not drawn to scale