不等式在解决实际问题中有着十分重要的用途,列不等式是解答范围问题的前提;构造函数关系,活用均值不等式是解答均值问题的主要工具.有关统筹安排、经济核算、污水处理、汽车的最大限速、容器的最大容积、用料最省、购物方式、经济效益问题等常建立不等式模型求解. Inequalities have very important applications in solving practical problems. Column inequalities are the prerequisites for solving range problems. Constructing functional relationships and using mean inequalities are the main tools for solving the mean value problems. The maximum limits for integrated planning, economic accounting, sewage treatment, and automobiles Speed, the maximum volume of the container, the most used materials, shopping methods, economic problems, etc. often establish inequality model solution.