第三讲 导数的应用一 【考点提示】1.利用导数的符号判断函数的单调性：_____________________________________________________________________________________________________________________________.2.求可导函数单调区间的一般步骤：（1）______________________________________________;（2）______________________________________________;（3）______________________________________________;（4）______________________________________________.3.函数极值的概念：_____________________________________________________________________________________________________________________________.4.求可导函数极值的一般步骤：（1）______________________________________________;（2）______________________________________________;（3）______________________________________________;（4）______________________________________________.5.函数的最大值、最小值：_________________________________________________________________________________________________________________________________________________.6.求函数的最大值与最小值的一般步骤：__________________________________________________________________________________________________________________________________________________________.7.不等式恒成立与存在性问题： （1）分离参数：__________________________________________________________________________________________________________________________________________________ （2）分类讨论：__________________________________________________________________________________________________________________________________________________ （3）确定主元：__________________________________________________________________________________________________________________________________________________ （4）利用集合与集合间的关系：__________________________________________________________________________________________________________________________________________________ （5）数形结合：_______________________________________________________________________________________________________________...
