There are indeed some high school questions that will be troublesome to answer with high school knowledge, but they can be easily solved with advanced mathematics knowledge. For example, some problems of finding the limit can be solved by high school knowledge, and can only be solved by deformation and replacement of some variables. However, if you have studied advanced mathematics and used Roberta's law, you can easily find the limit.

However, I don't advise you to study advanced mathematics in advance! The study burden in high school is heavy and time is tight. If you study college knowledge in advance, it is not easy to study, and it will take a lot of time, which will affect the study of high school knowledge.

I suggest you do more exercises to master the knowledge of high school more firmly!