[" 2."n tan alpha=(n+1)tan betaquad 2cos8 pi|9" कest "G" ,"],[tan(alpha-beta)=(sin2 beta)/(2n+1-cos2 beta)]

If tan(alpha-beta)=(sin 2beta)/(3-cos2beta) , then

If tan (alpha-beta)=(sin 2beta)/(3-cos 2beta) , then

If tan (alpha-beta)=(sin 2beta)/(3-cos 2beta) , then

If" " n tan alpha = (n+1) tan beta " then show that", tan (alpha - beta) = (sin 2 beta)/(2n + 1 - cos2 beta).

If n tan alpha=(n+1)tan beta then show that tan(alpha-beta)=(sin2 beta)/(2n+1-cos2 beta)

If" " 2 tan alpha = 3 tan beta, " show that",tan ( alpha - beta) = (sin 2 beta)/(5- cos 2 beta).

If 2tan alpha=3tan beta, prove that tan(alpha-beta)=(sin2 beta)/(5-cos2 beta)

If 2tan alpha=3tan beta, prove that tan(alpha-beta)=(sin2 beta)/(5-cos2 beta)

If tan beta=3tan alpha, prove that tan(alpha+beta)=(2sin2 beta)/(1+cos2 beta)

If tan beta = 3 tan alpha, prove that tan (alpha + beta) = (2sin 2beta)/(1+cos 2beta)