Use Identities to Find the Exact Value $\cos 36 ^ { \circ } \cos 24 ^ { \circ } - \sin 36 ^ { \circ } \sin 24 ^ { \circ }$

question 482

Multiple Choice

Use Identities to find the exact value.
- $\cos 36 ^ { \circ } \cos 24 ^ { \circ } - \sin 36 ^ { \circ } \sin 24 ^ { \circ }$

• A) 1
• B) \(\frac { \sqrt { 2 } } { 2 }\)
• C) \(\frac { 1 } { 2 }\)
• D) \(\frac { \sqrt { 3 } } { 2 }\)

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Definitions:

Revenue

The total income generated from goods sold or services provided by a business, which can be before or after any deductions are made.

Expenses

Money spent or cost incurred in an entity's efforts to generate revenue, representing the cost of doing business.

Cash Flow Statement

A statement that shows the cash on hand at the beginning of a period, the income and disbursements made during the period, and the new amount of cash on hand at the end of the period.

Accounts Receivable

Money owed to a business by its clients or customers for goods or services delivered or used but not yet paid for.