Use a Calculator to Give the Real Number Value $$\mathrm { y } = \cos ^ { - 1 } ( - 0.9397 )$$

question 115

Multiple Choice

Use a calculator to give the real number value. Round the answer to 7 decimal places.
- $$\mathrm { y } = \cos ^ { - 1 } ( - 0.9397 )$$

• A) \(2.7925484\)
• B) \(2.7412723\)
• C) \(2.8285740\)
• D) \(- 0.3492063\)

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