question_answer

Find the value of tan \[\mathbf{15{}^\circ }\] by using identity tan 2\[\theta \]= ????

A)  \[2+\sqrt{3}\]                                                  

B)  \[2-\sqrt{3}\]      

C)  \[\sqrt{3}+1\]                                                              

D) \[\sqrt{3}-1\]

E) None of these