Use Sum and Difference Formulas for Cosines and Sines
- $\sin \left( 190 ^ { \circ } - 70 ^ { \circ } \right)$

Multiple Choice

Use Sum and Difference Formulas for Cosines and Sines
- $\sin \left( 190 ^ { \circ } - 70 ^ { \circ } \right)$

A) $\frac { \sqrt { 3 } } { 2 }$
B) $- \frac { 1 } { 2 }$
C) $\frac { 19 } { 6 }$
D) $- \frac { \sqrt { 3 } } { 2 }$