Express the Sum or Difference as a Product of Sines $\sin ( 6 \theta ) - \sin ( 4 \theta )$

question 1

Multiple Choice

Express the sum or difference as a product of sines and/or cosines.
- $\sin ( 6 \theta ) - \sin ( 4 \theta )$

• A) \(2 \sin ( 5 \theta ) \cos \theta\)
• B) \(- 2 \sin ( 5 \theta ) \cos \theta\)
• C) \(2 \sin \theta \cos ( 5 \theta )\)
• D) \(- 2 \sin \theta \cos ( 5 \theta )\)

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Definitions:

Marginal Revenue

The additional income from selling one more unit of a good; sometimes equal to the price of the good.

Total Fixed Costs

The sum of all costs that remain constant regardless of the level of production or output in a business.

Recession

A period of declining real GDP, accompanied by lower real income and higher unemployment.

Average Fixed Cost

The fixed expenses of a business spread out over the total number of units produced, decreasing as production increases.