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The angle of elevation of an aeroplane f...

The angle of elevation of an aeroplane from a point P on the ground is `60^(@)`. After 12 seconds from the same point P, the angle of elevation of the same plane changes to `30^(@)`. If the plane is flying horizontally at a speed of `600sqrt3` km/h, find the height at which the plane is flying.

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ICSE MODEL PAPER-SAMPLE PAPER 2022-SECTION B
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