How solve a problem with changing angle for related rates

The video tutorial explains how to find the rate at which the angle of elevation changes as an airplane flies at a constant altitude of five miles towards an observer. The speed of the airplane is 600 mph. The tutorial covers defining variables, setting up equations using trigonometry, and solving them using calculus to find the rate of change of the angle of elevation when the angle is 30 degrees. The process involves using the tangent function and differentiating with respect to time to arrive at the solution.

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