From a 60 m high tower, the angles of depression of the top and the bottom of a house are α&nb….

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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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