Questions
A man observes that the tops of three poles standing in front of him are in a line. If the heights of the poles are in A.P. then the horizontal distances of the poles from the man are in
detailed solution
Correct option is A
We have tanα=h1a=h2b=h3c⇒a=h1cotα,b=h2cota, c=h3cotαSince h1,h2,h3 are in A.P. ⇒h1cotα,h2cotα,h3cotα are in A.P. ⇒a,b,c, are in A.P.Talk 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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