In order to enter the exponential function, , in Maple, you must use the exp command. The syntax of this command is similar to that of sin and cos. For example, here we enter the function and then evaluate at x = 2.
The natural log function, ln, is also used in this manner.
Plotting the two functions and on the same coordinate system gives an idea of the symmetry around the line y=x. Make sure that you can identify which curve is and which curve is .
Looking at the graph of the two functions, you can get a pretty good idea of what happens to f(x) as x approaches negative infinity; however,in order to be sure, you must take a limit.