Find an Exact Value $$\cos \frac { 19 \pi } { 12 }$$

question 17

Multiple Choice

Find an exact value.
- $$\cos \frac { 19 \pi } { 12 }$$

• A) \(\frac { - \sqrt { 6 } - \sqrt { 2 } } { 4 }\)
• B) \(\frac { \sqrt { 6 } + \sqrt { 2 } } { 4 }\)
• C) \(\frac { \sqrt { 6 } - \sqrt { 2 } } { 4 }\)
• D) \(\frac { \sqrt { 2 } - \sqrt { 6 } } { 4 }\)

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