Choose the One Alternative That Best Completes the Statement or Answers

question 72

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Express the product as a sum containing only sines or cosines.
- $\sin ( 3 \theta ) \cos ( 4 \theta )$

• A) \(\sin \cos \left( 12 \theta ^ { 2 } \right)\)
• B) \(\frac { 1 } { 2 } [ \cos ( 7 \theta ) + \sin \theta ]\)
• C) \(\frac { 1 } { 2 } [ \cos ( 7 \theta ) - \cos \theta ]\)
• D) \(\frac { 1 } { 2 } [ \sin ( 7 \theta ) - \sin \theta ]\)

---

Definitions:

Perpetual Inventory System

The inventory system of a company that keeps a continuous (perpetual) record of inventory on hand and of the cost of goods sold.

Periodic Inventory System

An accounting method where inventory levels and cost of goods sold are determined at set intervals, typically annually.

Perpetual Inventory System

An inventory management approach where records of inventory levels are updated on a continuous basis as transactions occur.

Merchandise Inventory

Merchandise Inventory refers to the products a company has in stock that are ready to be sold, represented as an asset on the balance sheet.