UPSC 2013 CDS 1 Math Paper
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Dirctions: Consider the following for the next four (04) questions that follow :
As seen from the top and bottom of a building of heighth metres, the angles of elevation of the top of a tower of height
metres are α and β respectively.
As seen from the top and bottom of a building of height
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Question : 51 of 100
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If β = 30 ° , and if θ is the angle of depression of the foot of the tower as seen from the top of the building then what is t a n θ equal to?
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