I would like to ask another question.
I had to calculate a limit using l'Hospital's rule.
I know that I got the correct numerical answer but unfortunately my answer has a different form from that of the professor.
How can I change my form in the better one which he uses?
I attempted to type the asked limit but as you can see the software can't execute the code (my mistake of course).
Constatine, thanks for the answer.
Mr F edit: You would see that I had fixed the latex if you stopped re-editing and hence undoing my editing!