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) \(2 \left( \cos 24 ^ { \circ } - \cos 8 ^ { \circ } \right)\)

---

Definitions:

Sales Dollars

The total revenue generated from the sale of goods or services, measured in monetary units.

Press Setup Cost

This refers to the expenses involved in configuring or preparing machinery for the manufacturing of a new batch of products.

Least-squares Regression

An approach within statistics aimed at establishing the best fitting line by lowering the sum of the squares of the discrepancies between observed and predicted data points.

Variable Cost

Expenses that change in direct proportion to the volume of production or output.