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April 19, 2014

Homework Help: maths

Posted by pooja on Tuesday, November 8, 2011 at 4:14am.

from the top of a light house the angle of depression of a ship sailing towards it was found to be 30 degrees . after 10 seconds the angle of depresion changes to 60 degrees. assuming that the ship is sailing at uniform speed. find how much time it will take to reach the light house?

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