Use Sum and Difference Formulas for Tangents
Find the Exact $\tan 255 ^ { \circ }$

Multiple Choice

Use Sum and Difference Formulas for Tangents
Find the exact value by using a difference identity.
- $\tan 255 ^ { \circ }$

A) $\sqrt { 3 } + 2$
B) $- \sqrt { 3 } + 2$
C) $- \sqrt { 3 } - 2$
D) $\sqrt { 3 } - 2$