Use a Calculator to Give the Real Number Value $$y = \cos ^ { - 1 } ( - 0.3907 )$$

question 169

Multiple Choice

Use a calculator to give the real number value. Round the answer to 7 decimal places.
- $$y = \cos ^ { - 1 } ( - 0.3907 )$$

• A) \(2.0079383\)
• B) \(1.9721882\)
• C) \(- 1.1698423\)
• D) \(1.9206367\)

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