Solve the Problem $\cos \left( - 75 ^ { \circ } \right)$

question 252

Multiple Choice

Solve the problem.
- $\cos \left( - 75 ^ { \circ } \right)$

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

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