Find the Exact Value of the Expression $\sec 240 ^ { \circ }$

question 54

Multiple Choice

Find the exact value of the expression.
- $\sec 240 ^ { \circ }$

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

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