Graduate students majoring in mathematics must take the exam. As for those in the general exam, I can't think of any reason to delete this content. I think this is a very basic knowledge point. Although I haven't specifically read this postgraduate entrance examination outline, I think many topics will still permeate these things. Since you can withstand the pressure of preparing for the postgraduate entrance examination, there is no need to take risks with so much content. Just learn more practical things.