An airplane flies at an altitude of 5 miles toward a point directly over an observer (see figure)

point-directly

#1

An airplane flies at an altitude of 5 miles toward a point directly over an observer (see figure).The speed of the plane is 600 miles per hour. Find the rates at which the angle of elevation θ is changing when the angle is (a) θ= 30º , (b) θ= 75º

Answer:

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