Write the Product as a Sum or Difference of Trigonometric $$- 8 \cos ( - \theta ) \sin ( - 5 \theta )$$

question 471

Multiple Choice

Write the product as a sum or difference of trigonometric functions.
- $$- 8 \cos ( - \theta ) \sin ( - 5 \theta )$$

• A) \(- 4 ( \cos 6 \theta - \cos 4 \theta )\)
• B) \(4 ( \sin 6 \theta - \sin 4 \theta )\)
• C) \(- 8 ( \cos 6 \theta + \cos 4 \theta )\)
• D) \(4 ( \sin 6 \theta + \sin 4 \theta )\)

---

Definitions:

Thrust Loads

Forces applied parallel to the axis of a bearing, shaft, or axle, pushing against its lengthwise direction.

Roller Bearings

Bearings that use cylindrical rollers to maintain the separation between moving parts of a bearing, reducing friction and supporting radial and axial loads.

Cylindrical

Relating to the surface or shape of a cylinder, which is a solid geometric figure with straight parallel sides and a circular or oval cross section.

Spherical

Having the shape of a sphere; relating to or resembling a ball or globe.