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Find an Exact Value cos15\cos 15 ^ { \circ } A) 6+24\frac { \sqrt { 6 } + \sqrt { 2 } } { 4 }

Question 268

Multiple Choice

Find an exact value.
- cos15\cos 15 ^ { \circ }


A) 6+24\frac { \sqrt { 6 } + \sqrt { 2 } } { 4 }
B) 6+14\frac { - \sqrt { 6 } + 1 } { 4 }
C) 2+64\frac { - \sqrt { 2 } + \sqrt { 6 } } { 4 }
D) 264\frac { - \sqrt { 2 } - \sqrt { 6 } } { 4 }

Correct Answer:

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