Mathematics, 10.06.2020 17:57, nadia74
an angle of elevation of an air craft from a point a on the ground is 60. after a flight of 15 seconds horizontally the angle of elevation changes to 30. if the aircraft is flying at a speed of 200m/s, then what is the height at which the air craft is flying?
Answers: 2
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an angle of elevation of an air craft from a point a on the ground is 60. after a flight of 15 secon...
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