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An aeroplane at an altitude of 1200 me...

An aeroplane at an altitude of 1200 metres finds that two ships are sailing towards it in the same direction. The angles of depression of the ships as observed from the aeroplane are `60^o` and `30^o` respectively. Find the distance between the two ships.

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RD SHARMA-SOME APPLICATIONS OF TRIGONOMETRY-All Questions
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