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纵观近几年的高考试题,对有关函数与导数的综合题的考察越来越受到重视.高考对有关函数与导数的考察重在对函数与导数知识理解的准确性、深刻性以及与其他知识版块的相互联系上.然而学生遇到利用导数相关知识研究函数的极值、单调区间、不等式恒成立以及函数零点或方程根等问题时,十分茫然,不知从何下手.本文试图通过多种思维途径入手,得到不同的解答方法,从而使此类问题得到有效解决.题目(2013年高考江苏理科第20题)设函
Taking a closer look at the college entrance examination exams in recent years, more and more attention has been paid to the comprehensive questions about functions and derivatives.The examination of relevant functions and derivatives in college entrance examinations focuses on the accuracy and profoundness of understanding of functions and derivatives, However, when students encounter the problem of using exponential related knowledge to study the extremum, monotone interval, inequality constant, and function zero or root of equation, etc., Thinking ways to start, get different answers, so that such problems can be effectively solved. (2013 Jiangsu Science Entrance Examination Question 20) letter