question_answer

\[\mathbf{Tan5}{}^\circ \text{ }\mathbf{tan25}{}^\circ \text{ }\mathbf{tan30}{}^\circ \text{ }\mathbf{tan65}{}^\circ \text{ }\mathbf{tan85}{}^\circ \]= ?

A) 1                     

B) \[\frac{1}{\sqrt{3}}\]        

C) \[\sqrt{3}\]                  

D) \[\frac{1}{2}\]

E) None of these