1.

From the top of a hill h meters high the angle of depressions of the top and the bottem of a piller are alpha " and "beta respectively. The height (in meters) of the piller is

Answer»

`(H(TAN BETA- tan ALPHA))/(tan beta)`
`(h(tan alpha- tan beta))/(tan alpha)`
`(h(tan beta+ tan alpha))/(tan beta)`
`(h(tan beta+ tan alpha))/(tan alpha)`

ANSWER :A


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