2000 A television camera at ground levell is 2000 feet away from the launching pad of a space rocket that is set to take off vertically,as seen the following figure. The angle of elevation of the camera can be found by 0 = tan where is the height of the rocket. 2000 Find the rate of change of the angle of elevation after launch when the camera and the rocket are 45a feet apart. radians per foot. Round to five decimal places.

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