An airplane flies at an altitude of 5 miles toward a point directly over an observer. Consider

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An airplane flies at an altitude of 5 miles toward a point directly over an observer. Consider θ and x as shown in the figure.

(a) Write θ  as a function of x.

(b) The speed of the plane is 400 miles per hour. Find dθ/dt
when x = 10 miles and x = 3 miles.

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Calculus

ISBN: 9781285057095

10th Edition

Authors: Ron Larson, Bruce H. Edwards

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