Find the Exact Value $\cos 15 ^ { \circ }$ A) $\sqrt { 6 } + \sqrt { 2 }$

question 56

Multiple Choice

Find the exact value. $\cos 15 ^ { \circ }$

• A) \(\sqrt { 6 } + \sqrt { 2 }\)
• B) \(\sqrt { 6 } - \sqrt { 2 }\)
• C) \(\frac { \sqrt { 6 } + \sqrt { 2 } } { 4 }\)
• D) \(\frac { \sqrt { 6 } + 3 \sqrt { 2 } } { 4 }\)
• E) \(\frac { \sqrt { 6 } + \sqrt { 2 } } { 2 }\)

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