函数与导数、方程与不等式都是自主招生考试(笔试)的重要内容,本专题和下一专题将以例题和练习题的形式对此内容作详细讲解.这些题目基本上涵盖了2011~2014年自主招生数学试题中的典型题目.两个专题的讲解是平行的(即涵盖的内容一致),本专题中所选题目较下一专题中的题目略简单些.例1(2011年北约第5题)是否存在四个正实数,它们的两两乘积分别是2,3,5,6,10,16? Functions and Derivatives, Equations and Inequalities are all important contents of self-enrollment test (written test). The topics and the next topic will be explained in detail in the form of examples and practice questions. These topics basically cover 2011-2014 Self-enrollment math test questions in the typical topic. The two topics are parallel (that is, covering the same content), the topics selected in this topic than the topic in the next topic a bit simpler Example 1 (2011 NATO 5 Question) Is there any four positive real number, their two products are 2, 3, 5, 6, 10, 16?