Write the Product as a Sum or Difference of Trigonometric $8 \sin 57 ^ { \circ } \cos 110 ^ { \circ }$

question 385

Multiple Choice

Write the product as a sum or difference of trigonometric functions.
- $8 \sin 57 ^ { \circ } \cos 110 ^ { \circ }$

• A) \(4 \left[ \cos 167 ^ { \circ } + \cos \left( - 53 ^ { \circ } \right) \right]\)
• B) \(8 \left[ \cos 167 ^ { \circ } + \cos \left( - 53 ^ { \circ } \right) \right]\)
• C) \(4 \left[ \sin 167 ^ { \circ } - \sin \left( - 53 ^ { \circ } \right) \right]\)
• D) \(4 \left[ \sin 167 ^ { \circ } + \sin \left( - 53 ^ { \circ } \right) \right]\)

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