Trigonometry word problems-the rate of change of an angle


Question:

Trigonometry Word Problems: The Rate of Change of an Angle

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Question: An airplane is flying at an altitude of 8 miles towards a point directly over an observer. If the speed of the plane is 615 miles per hour, find the rate at which the angle of observation, theta, changing by at the moment when the angle is 21 degrees.

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Mathematics: Trigonometry word problems-the rate of change of an angle
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