Evaluating An Exponential Function
Algebra
Level
3
\[\large f(x)=\frac{e^x+e^{-x}}{e^x-e^{-x}} \]
Suppose we define the function \(f(x) \) as above. If \(f(a)=\frac{5}{3}\) and \(f(b)=\frac{7}{5},\) what is the value of \(f(a+b)?\)
by
Mahindra Jain