Questions
From the top of a light house, the angles of depression of two stations on opposite side of it at a distance ‘a’ apart are and . The height of the light house is
detailed solution
Correct option is D
tanα=hx⇒x=hcotα, tanβ=ha−x⇒a−x=hcotβ∴a−hcotα=hcotβ⇒h=acotα+cotβTalk to our academic expert!
Similar Questions
The angle of elevation of top of an unfinished tower at a point distance 120m from its base is 450. How much height must the tower be raise so that angle of elevation of top at the same point to be 600.
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