Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.
-$\sin 115 ^ { \circ } \cos 55 ^ { \circ } - \cos 115 ^ { \circ } \sin 55 ^ { \circ }$
A) $\frac { \sqrt { 3 } } { 3 }$
B) $\frac { 1 } { 2 }$
C) $\frac { 23 } { 12 }$
D) $\frac { \sqrt { 3 } } { 2 }$

Question

Quizplus · Accepted Answer

The Answer of Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.
-$\sin 115 ^ { \circ } \cos 55 ^ { \circ } - \cos 115 ^ { \circ } \sin 55 ^ { \circ }$
A) $\frac { \sqrt { 3 } } { 3 }$
B) $\frac { 1 } { 2 }$
C) $\frac { 23 } { 12 }$
D) $\frac { \sqrt { 3 } } { 2 }$

Write the Expression in Terms of Sine and Cosine, and Simplify