Find the Exact Value Without Using a Calculator $\cos \left( \frac { 2 \pi } { 3 } \right)$

question 5

Multiple Choice

Find the exact value without using a calculator.
- $\cos \left( \frac { 2 \pi } { 3 } \right)$

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

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Definitions:

Market Value

The existing rate at which an asset or service can be sold or acquired.

Revenue Expenditure

Expenses incurred during the normal course of business that are expected to be consumed within the current accounting period.

New Equipment

Capital assets recently acquired by a company for use in its operations, potentially enhancing productivity or efficiency.

Building Account

An account used to record the costs associated with the construction or purchase of a building over time, which may include materials, labor, and overhead.