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The angle of elevation of a jet fighter from a point A on the ground is 60degree.After a flight of 15 seconds,the angle of elevation changes to 30degree.If the jet is flying at the speed of 720km/hr,find the constant height at which the jet is flying.(take root3=1.73)
Asked by | 07 Feb, 2012, 02:04: PM
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Answered by | 07 Feb, 2012, 02:50: PM

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CBSE 10 - Maths
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