Write the Product as a Sum or Difference of Trigonometric $- 10 \cos ( - \theta ) \sin ( - 5 \theta )$

question 303

Multiple Choice

Write the product as a sum or difference of trigonometric functions.
- $- 10 \cos ( - \theta ) \sin ( - 5 \theta )$

• A) \(- 5 ( \cos 6 \theta - \cos 4 \theta )\)
• B) \(- 10 ( \cos 6 \theta + \cos 4 \theta )\)
• C) \(5 ( \sin 6 \theta + \sin 4 \theta )\)
• D) \(5 ( \sin 6 \theta - \sin 4 \theta )\)

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