反证法是从反面的角度思考问题的,它不仅在初等数学里是必需的,而在高等数学里也是常用的,是中学生必须掌握和灵活运用的一种重要的证明方法.因为反证法是初中数学中一种重要的一种数学思想,因此有着广泛的适用范围.下面就我几年来的 The counter-evidence method considers the problem from the negative perspective. It is not only necessary in elementary mathematics, but is also commonly used in higher mathematics. It is an important proof method that middle school students must master and use flexibly. Because the counter-evidence method is used in junior middle school mathematics. An important kind of mathematics, so it has a wide range of applications. Here are my years