An airplane flies at an altitude of 5 miles toward a point directly over an observer. Consider 0 and x as shown in the figure below. 5 mi Not drawn to scale (a) Write 0 as a function of x. 0(x) = (b) The speed of the plane is 336 miles per hour. Find d0/dt when x = 10 and x = 3. (Round your answers to three decimal places.) de when x = 10 rad/h dt de when x = 3 rad/h dt

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