Find the Exact Value of the Expression $- 2$ B) $\frac { 2 \sqrt { 3 } } { 3 }$

question 144

Multiple Choice

Find the exact value of the expression.
-csc 840°

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

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