物理和数学是关系非常紧密的两门学科,在物理解题中能适当的用数学技巧来处理,能让学生更深入了解题目的物理意义,增加交叉运用学科的能力,利用一元二次方程判别式△处理物理问题,就是很好的数学方法. Physics and mathematics are two closely related disciplines. They can be dealt with mathematically skillfully in physical problem solving, which enables students to understand the physical meaning of the subject in more depth, increase the ability to cross the disciplines, and use the quadratic equation Formula △ deal with physical problems, is a good mathematical method.