1.

\(\rm{tan} \dfrac{5 \pi}{12} - \rm{tan} \dfrac{\pi}{12} - \sqrt 3 \rm{tan} \dfrac{5 \pi}{12}. \rm{tan} \dfrac{ \pi}{12}\) is equal to

A. √3
B. -√3
C. \(\dfrac{1}{\sqrt 3}\)
D. 1
Answer» B. -√3


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