A Value Of $\sinh x$ Or $\cosh x$ Is Given Use the Definitions and the Identity

question 2

Multiple Choice

A value of $\sinh x$ or $\cosh x$ is given. Use the definitions and the identity $\cosh ^ { 2 } x - \sinh ^ { 2 } x = 1$ to find the value of the other indicated hyperbolic function.
- $\sinh x = - \frac { 4 } { 3 } , \tanh x =$

• A) \(- \frac { 5 } { 4 }\)
• B) \(\frac { 5 } { 3 }\)
• C) \(- \frac { 4 } { 5 }\)
• D) \(\frac { 4 } { 5 }\)

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