PROVE THAT-
tan -1 ((1/root over 3) tan x/2) = 1/2 cos -1 ((1+2cos x)/ (2cos x+1))
This question has some error. Please check it and repost properly because the RHS term
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PROVE THAT-
tan -1 ((1/root over 3) tan x/2) = 1/2 cos -1 ((1+2cos x)/ (2cos x+1))
This question has some error. Please check it and repost properly because the RHS term