Find the principal value of each of the following :
[ Formula: tan( π + x) = tan x, as tan is positive in the third quadrant.]
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[Formula: tan-1(tan x) = x ]
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1
Find the principal value of each of the following :
[ Formula: tan( π + x) = tan x, as tan is positive in the third quadrant.]
= [Formula: tan-1(tan x) = x ]
=