Form the top of a light house 60 m high with its base at the sea-level the angle of depression of a boat is `15^(@)`. Find the distance of the boat from the foot of light house.

Form the top of a light house 60 m high with its base at the sea-level

1.	Form the top of a light house 60 m high with its base at the sea-level the angle of depression of a boat is `15^(@)`. Find the distance of the boat from the foot of light house.
Answer» Correct Answer - `60((sqrt(3)+1)/(sqrt(3)-1))`m [Hint : `cot^(@)` = `(sqrt(3)+1)/(sqrt(3)-1)`, use this value. ]