Write the Product as a Sum or Difference of Trigonometric $4 \cos 16 ^ { \circ } \cos 8 ^ { \circ }$

question 309

Multiple Choice

Write the product as a sum or difference of trigonometric functions.
- $4 \cos 16 ^ { \circ } \cos 8 ^ { \circ }$

• A) \(2 \left( \sin 24 ^ { \circ } - \sin 8 ^ { \circ } \right)\)
• B) \(4 \left( \sin 24 ^ { \circ } + \sin 8 ^ { \circ } \right)\)
• C) \(2 \left( \cos 24 ^ { \circ } + \cos 8 ^ { \circ } \right)\)
• D) \(2 \left( \cos 24 ^ { \circ } - \cos 8 ^ { \circ } \right)\)

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