If α, H, A and δ be the altitude, hour angle, azimuth and declinati – McqOptions

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1.	If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good
A.	cos H = tan λ/tan δ
B.	sin α = sin λ/sin δ
C.	sin A = cos δ/cos λ
D.	All the above
Answer» E.

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