Find the Exact Solution to the Equation Without a Calculator $$\cos ^ { - 1 } ( \cos x ) = \frac { 1 } { 4 }$$

question 3

Multiple Choice

Find the exact solution to the equation without a calculator.
- $$\cos ^ { - 1 } ( \cos x ) = \frac { 1 } { 4 }$$

• A) \(\frac { 1 } { 4 }\)
• B) \(\frac { 1 } { 8 }\)
• C) 4
• D) 0

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