Evaluate the Expression Using the Concept of a Reference Angle $\cos \left( - 675 ^ { \circ } \right)$

question 4

Multiple Choice

Evaluate the expression using the concept of a reference angle. $\cos \left( - 675 ^ { \circ } \right)$

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

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Definitions:

Deregulation

The process of reducing or eliminating government power in a particular industry, usually to create more competition within the industry.

Transactional Motive

relates to the need to hold cash for the purpose of conducting day-to-day transactions.

Precautionary Motive

The desire to hold cash or liquid assets to guard against unexpected events and emergencies, influencing how individuals and firms manage their finances.

Speculative Motive

The speculative motive is the desire to hold cash or other assets with the expectation of making a profit from fluctuations in their price or value.