A plane flying with a constant speed of 9 km min passes over a ground...
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Geometry
A plane flying with a constant speed of 9 km min passes over a ground radar station at an altitude of 14 km and climbs at an angle of 40 degrees At what rate is the distance from the plane to the radar station increasing 3 minutes later The distance is increasing at km min Hint Hint The law of cosines for a triangle is where is the angle between the sides of length a and b e a b 2abcos 0
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