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) $- \frac { \sqrt { 3 } } { 2 }$

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The Answer of 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) $- \frac { \sqrt { 3 } } { 2 }$

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

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