In First principles there is usually a part that states as lim approaches 0. Now I came across a question where the limit was as 1 approaches 3. what should I do?

Question

In First principles there is usually a part that states as lim approaches 0. Now I came across a question where the limit was as 1 approaches 3. what should I do?

Answer 1

All limit problems are different.

If only the limit is known without knowing the question, we don't know the answer.

Please post the complete question in order and answer can be formulated.