不等式是高中数学学习的重点,学好不等式不仅能解决许多数学难题,还能为接下来的数学学习打下坚实的基础。但同学们在运用不等式解题时会出现各种问题,降低学习效率。因此,我们要灵活应用不等式知识,找到具有规律性的解题技巧,进而降低解题难度,提高数学学习的效率以及考试成绩。一、巧妙换元法——简化题目换元法是指在解题过程中,将某式子当成统一整体,用一个简化的字母量代替,再替换到原整体式子中,从而得到一个含有新的量的简化式。这样就会使 Inequality is the focus of high school mathematics learning. Learning inequality not only can solve many math problems, but also lay a solid foundation for the following maths learning. However, students in the use of inequality problems will appear when a variety of problems, reduce learning efficiency. Therefore, we must flexibly apply the inequality knowledge to find a regular solution to the problem solving skills, thereby reducing the difficulty of solving problems, improve the efficiency of math learning and test scores. First, the clever change for the yuan method - to simplify the problem Replaced yuan method is in the process of solving problems, the formula as a unified whole, with a simplified letter instead, and then replaced the original monolithic, resulting in a containing The simplified version of the new quantity. This will make it