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数列和不等式都是高中数学重要内容,这两个重点知识的联袂、交汇融合,更能考查学生对知识的综合理解与运用的能力。这类交汇题充分体现了“以能力立意”的高考命题指导思想和“在知识网络交汇处”设计试题的命题原则。解决数列中的不等关系问题常见的方法有:构造函数法、作差或作商直接比较
The series and inequalities are important contents of high school mathematics. The combination and convergence of these two key knowledge can better examine students’ ability to comprehensively understand and use knowledge. This kind of meeting problem fully embodies the guiding ideology of the college entrance examination proposition and the proposition principle of designing examination questions at the intersection of knowledge networks. The common methods to solve inequalities in a sequence of numbers are: constructor method, difference, or direct comparison