Question: Solve the following equations for (x) : a. (cosh (x+ln 3)=3). b. (2 tanh ^{-1} frac{x-2}{x-1}=ln 2). c. (sinh ^{2} x-7 cosh x+13=0).

Solve the following equations for \(x\) :

a. \(\cosh (x+\ln 3)=3\).

b. \(2 \tanh ^{-1} \frac{x-2}{x-1}=\ln 2\).

c. \(\sinh ^{2} x-7 \cosh x+13=0\).

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