One of the basic concepts of calculus that are studied in the course “Numerical methods of economics”. More detailed information here https://ek.biem.sumdu.edu.ua/
2. L'Hôpital's rule
• L'Hôpital's rule or L'Hospital's rule uses derivatives to help
evaluate limits involving indeterminate forms. Application (or
repeated application) of the rule often converts an indeterminate
form to an expression that can be evaluated by substitution, allowing
easier evaluation of the limit.
3. L'Hôpital's rule states that for functions f and g which
are differentiable on an open interval I except possibly at a
point c contained in I, if
L'Hôpital's rule
4. The differentiation of the numerator and denominator
often simplifies the quotient or converts it to a limit that
can be evaluated directly.
L'Hôpital's rule