Advanced mathematics can solve almost all math problems in high school, but it is not recommended that you learn it, which may not be worth the candle. If we must study it, I suggest:

1. Derivation of compound function: good at analytic geometry and function proving inequality)

2. Series related knowledge: it is very helpful for the summation of series inequalities.

3. Space straight line plane equation: Learn these well to ensure that all problems of solid geometry are solved. This is absolutely correct.

4. Parametric equation polar coordinates (included in indefinite integral): Polar parametric equation is the bane of conic curve, so it is recommended to learn.

I can't remember it all, that's all.

1 3 is highly recommended, and the other two are not recommended, which may not be worth the loss and delay the time.