Find the Derivative of Y with Respect to the Appropriate $$y = 8 \tanh ^ { - 1 } ( \cos x )$$

question 87

Multiple Choice

Find the derivative of y with respect to the appropriate variable.
- $$y = 8 \tanh ^ { - 1 } ( \cos x )$$

• A) \(\ln \left( \frac { 1 } { \sqrt { 1 - x ^ { 2 } } } \right) \sin x\)
• B) \(\frac { - 8 \sin x } { 1 + \cos ^ { 2 } x }\)
• C) \(\frac { - 8 } { \sin x }\)
• D) \(\frac { - 8 } { \cos x }\)

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