(通用版)2020高考数学一轮复习2.9指数函数课件文.ppt

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指数函数,第,九,节,课前自修区 基础相对薄弱,一轮复习更需重视 基础知识的强化和落实,课堂讲练区 考点不宜整合太大,挖掘过深 否则会挫伤学习的积极性,课时跟踪检测,课,前,自,修,区,一、基础知识批注理解深一点,二、常用结论汇总规律多一点,三、基础小题强化功底牢一点,课,堂,讲,练,区,考点一 指数函数的图象及应用,数形结合,变换作图,一些指数型方程、不等式问题的求解,往往利用相应指数型函数图象数形结合求解,对指数型函数的图象与性质问题(单调性、最值、大小比较、零点等)的求解往往利用相应指数函数的图象,通过平移、对称变换得到其图象,然后数形结合使问题得解,考点二 指数函数的性质及应用,取中间值法,单调 性法,不同底、不同指数的指数函数比较大小时,先与中间值(特别是0,1)比较大小,进而得出大小关系,不同底的指数函数化同底后就可以应用指数函数的单调性比较大小,所以能够化同底的尽可能化同底,谢谢观看,

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