Use Reference Angles to Find the Exact Value of the Expression

question 253

Multiple Choice

Use reference angles to find the exact value of the expression. Do not use a calculator.
- $\sin \frac { 5 \pi } { 3 }$

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

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