.An aeroplane when flying at a height of 4000 m from the ground passes – InterviewSolution

1.	.An aeroplane when flying at a height of 4000 m from the ground passes vertically above anotheraeroplane at an instant when the angles of the elevation of the two planes from the same poinon the ground are 60° and 45°, respectively. Find the vertical distance between the aeroplanes athat instant.L49
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