Evaluate Exactly $\sec \left( \cos ^ { - 1 } \left( \frac { 1 } { 2 } \right) \right)$

question 297

Multiple Choice

Evaluate exactly.
- $\sec \left( \cos ^ { - 1 } \left( \frac { 1 } { 2 } \right) \right)$

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