The last question to be answered is generally derivative, sequence and analytic geometry. These three are usually in the back. So these three are the key and difficult points. Of course, it is not ruled out. For example, Anhui solid geometry is the second lowest this year.
Analytic geometry must first strengthen the calculation, because the general method is generally more troublesome. Then pay attention to the geometric meaning. Simple methods will use a lot of geometric meanings. Then, remember the second meaning and some formulas. Do more problems, summarize methods, analyze geometry, and have fewer types. Also pay attention to the combination of vectors.