Find the Derivative of Y with Respect to the Appropriate $$y = \sinh ^ { - 1 } ( \cos x )$$

question 76

Multiple Choice

Find the derivative of y with respect to the appropriate variable.
- $$y = \sinh ^ { - 1 } ( \cos x )$$

• A) \(\frac { - \sin x } { \sqrt { 1 + \cos ^ { 2 } x } }\)
• B) \(\frac { 1 } { \sqrt { 1 + \cos ^ { 2 } x } }\)
• C) \(- \sin x\)
• D) \(\frac { - \sin x } { \sqrt { 1 + x ^ { 2 } } }\)

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