The angle of depression to the foot of a building from the top of 88\(\sqrt{3}\) m high tower is 60°. How far the tower is located form the building?

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This is an element belonging to the 16 th group of the periodic table that is used is used in the manufacturing of vulcanised rubber. This element reacts with hot and conc. HNO 3 to from sulphuric acid. Which element is

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