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     EduGorilla 
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    From a 60 m high tower, the angles of depression of the top and the bottom of a house are α and β, respectively. If the height of the house is , then x is equal to

    Options :-

    1. sin α sin β
    2. cos α cos β
    3. sin α cos β
    4. cos α sin β
    5. None of these
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