Find the Exact Circular Function Value $$\sin \frac { 4 \pi } { 3 }$$

Multiple Choice

Find the exact circular function value.
- $$\sin \frac { 4 \pi } { 3 }$$

A) $\frac { \sqrt { 3 } } { 2 }$
B) $- \frac { \sqrt { 3 } } { 2 }$
C) -1
D) $- \frac { 1 } { 2 }$