Write the Sum as a Product $\sin 4 x + \sin 5 x$

question 89

Multiple Choice

Write the sum as a product. $\sin 4 x + \sin 5 x$

• A) \(\sin 4 x \sin 5 x\)
• B) \(\sin 4 x \cos 5 x\)
• C) \(2 \sin ( 9 x / 2 ) \cos ( x / 2 )\)
• D) \(\sin 4 x \cos ( x / 2 )\)
• E) \(2 \sin 3 x \cos ( x / 2 )\)

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Definitions:

Actual Costs

The real costs incurred in the production of goods or services, including all direct and indirect expenses.

Inefficient Divisions

Parts of an organization that operate with lower productivity or effectiveness compared to expected standards.

Production Costs

The total expense involved in manufacturing goods, including raw materials, labor, and overhead costs.

General Rule

A principle or guideline that applies broadly and is considered to be of general use or value.