数学归纳法是证明与正整数有关命题的一种重要的证明方法,通过对数学归纳法的学习,可对中学数学中的许多重要结论,如等差、等比数列的通项公式及前n项和公式、二项式定理以及中学很多思维上开拓创新的题目可以进行很好地证明,使很多数学结论更加严密,也为后继学习打下了良好的基础. Mathematical induction is an important method to prove propositions related to positive integers. Through the study of mathematical induction, many important conclusions in middle school mathematics, such as the difference, the general formula of the geometric series, The items and formulas, the binomial theorem, and the pioneering and innovative topics in many secondary schools of thought can be proved well, bringing a lot of mathematic conclusions closer and laying a good foundation for further study.