Express the Sum or Difference as a Product of Sines $$\cos ( 10 \theta ) - \cos ( 4 \theta )$$

question 370

Multiple Choice

Express the sum or difference as a product of sines and/or cosines.
- $$\cos ( 10 \theta ) - \cos ( 4 \theta )$$

• A) \(2 \cos ( 3 \theta )\)
• B) \(2 \cos ( 7 \theta ) \cos ( 3 \theta )\)
• C) \(- 2 \sin ( 7 \theta ) \sin ( 3 \theta )\)
• D) \(- 2 \cos ( 7 \theta ) \sin ( 3 \theta )\)

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Definitions:

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A financial metric that measures how often a company collects its average accounts receivable balance in a period.

Accounts Payable Turnover

A financial ratio that measures the rate at which a company pays off its suppliers by dividing total purchases by average accounts payable for the period.

Cash Surplus

A situation where a business or individual's income exceeds its expenditures, resulting in available cash for saving or spending.

Cash Balance

The amount of cash that a company or individual has on hand at any given time.