Find the Exact Function Value $\cos ^ { - 1 } \left( \frac { \sqrt { 2 } } { 2 } \right)$

question 325

Multiple Choice

Find the exact function value.
- $\cos ^ { - 1 } \left( \frac { \sqrt { 2 } } { 2 } \right)$

• A) \(\frac { \pi } { 4 }\)
• B) \(\frac { 11 \pi } { 6 }\)
• C) \(\frac { 7 \pi } { 4 }\)
• D) \(\frac { \pi } { 6 }\)

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