Find the Exact Value Under the Given Conditions A) $\frac { \sqrt { 3 } } { 2 }$

question 213

Multiple Choice

Find the exact value under the given conditions.
- $\sin \left( \frac { - 5 \pi } { 6 } - \alpha \right) \cos \left( \frac { - 5 \pi } { 6 } + \alpha \right) + \cos \left( \frac { - 5 \pi } { 6 } - \alpha \right) \sin \left( \frac { - 5 \pi } { 6 } + \alpha \right)$

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

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