(Solved): Use a table of trigonometric function values of common angles and symmetry to find the exact value ...

Use a table of trigonometric function values of common angles and symmetry to find the exact value of the given expression. $\tan \left(?\frac{7?}{6}\right)$ Click the icon to view the table for trigonometric function values of common angles. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. $\tan \left(?\frac{7?}{6}\right)=$ (Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression.) B. The function value is not defined.