# Question #9ef51

##### 1 Answer

Mar 13, 2015

The solution is:

The exponential form of the function

and its graph is:

graph{coshx [-10, 10, -5, 5]}

So we have to restrict its domain to values in

Usually the choice is

To find the inverse of a function usually we use this method:

Because the choice of the domain and the corresponding range of *only* the solution:

and so: