Use Identities to Find the Exact Value $\cos \left( - 165 ^ { \circ } \right)$

question 209

Multiple Choice

Use Identities to find the exact value.
- $\cos \left( - 165 ^ { \circ } \right)$

• A) \(\frac { \sqrt { 6 } + \sqrt { 2 } } { 4 }\)
• B) \(\frac { - \sqrt { 6 } - \sqrt { 2 } } { 4 }\)
• C) \(\frac { \sqrt { 6 } - \sqrt { 2 } } { 4 }\)
• D) \(\frac { \sqrt { 2 } - \sqrt { 6 } } { 4 }\)

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Definitions:

Dividends

Payments made by a corporation to its shareholder members, often derived from profits.

Constant Rate

A situation or condition in which a particular variable remains unchanged over a period of time.

Dividends

A corporation's distribution of profits to its shareholders as payments.

Paid

Refers to the status of a financial obligation that has been fulfilled or settled.