基本不等式又称均值不等式,是高中数学的重要内容之一,也是每年高考数学考查的热点内容之一.使用基本不等式,要紧扣“一正二定三相等”的原则,这是使用基本不等式解决数学问题的关键,但是有些数学问题看似属于常规基本不等式模型,但是仔细分析,并不符合常规基本不等式使用的条件,很多学生遇到这类问题,往往不知所措,乱用公式,从而导致 The basic inequality, also known as the mean inequality, is one of the important contents of high school mathematics. It is also one of the hot topics of the annual college entrance examination mathematics examination. Using the basic inequality, we must closely follow the principle of “one positive and two fixed three phases, etc.” This is the use of basic The inequality solves the key problem of mathematics, but some mathematics problems seem to belong to the conventional basic inequality model, but careful analysis does not meet the conditions for the use of conventional basic inequalities. Many students encounter such problems and are often overwhelmed by the use of formulas. resulting in