Sequence, conic curve, derivative and its application, trigonometric function, solid geometry, etc. There may be big problems. The probability of big questions in the literature and number test is relatively small, but it may also appear. In addition, derivative, solid geometry and conic curve are all big questions that must be tested. Of course, we may examine many knowledge points around a big problem.

It is not enough for you to learn only three parts. You're not sure what to take.

If you teach yourself, you can recommend a complete high school math knowledge book. Iqiyi has some videos of Miao Jinli and Sima Lihong to watch.

It may be that these parts of solid geometry are difficult to learn by themselves. Other topics are not too difficult, and you can learn them by yourself.