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JEE Main 24 Feb 2021 Shift 2 Solved Paper

Section: Mathematics
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Question : 65 of 90
 
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The angle of elevation of a jet plane from a point A on the ground is 60∘. After a flight of 20s at the speed of 432km∕h, the angle of elevation changes to 30∘. If the jet plane is flying at a constant height, then its height is
[24 Feb 2021 Shift 2]
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