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From the top of the hill h meers high the angles of depressinons of the top and the bottom of a pillar are `alpha and beta` respectively. The height ( in meters ) of pillar is

A

`(h(tanbeta-tanalpha))/(tanbeta)`

B

`(h(tanalpha-tanbeta))/(tanalpha)`

C

`(h(tanbeta+tanalpha))/(tanbeta)`

D

`(h(tanbeta+tanalpha))/(tanalpha)`

Text Solution

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The correct Answer is:
A
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