5.3.3 函数的最大(小)值与导数
基础练
一、单选题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c04caf886b24ac9fee263e203e89fc6.png)
A.没有最小值,有最大值 | B.有最小值,没有最大值 |
C.有最小值,有最大值 | D.没有最小值,也没有最大值 |
【知识点】 由导数求函数的最值(不含参)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d87dfdce81a88a76811fbaa83c0f9f.png)
A.最大值为1 | B.最小值为1 |
C.最大值为![]() | D.最小值为![]() |
【知识点】 由导数求函数的最值(不含参)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52b1872dc45ca7365e193ae70e422e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 由导数求函数的最值(不含参)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
A.![]() |
B.![]() |
C.![]() ![]() |
D.![]() ![]() |
【知识点】 函数最值与极值的关系辨析
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7898bd118783c061b7d3748627c02c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095c5f7a3c6917839c01fd1e5654ee91.png)
A.0 | B.![]() | C.![]() | D.![]() |
【知识点】 由导数求函数的最值(不含参)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8706aa7f9054100614e0701a937f190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b3d044a29ce8ebcf6fce2d5c8ea9f4.png)
A.2 | B.![]() | C.1 | D.![]() |
【知识点】 由导数求函数的最值(不含参) 利用导数研究能成立问题
二、填空题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e9f5461478d811d174840b72389231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663db8a8e903e6033390a8efc5d8acda.png)
【知识点】 由导数求函数的最值(不含参)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce53e3885a50b0750eeae04eb38bc48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15641191c56b4df40e30f0b10c30243a.png)
【知识点】 由导数求函数的最值(不含参)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f180718c0b7b3de58a11c9b8b70621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427808a76b3a1a6705a17fedba8f7aed.png)
【知识点】 由导数求函数的最值(不含参)
三、解答题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197772410ee2b9d3518943f29ac3cd36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fb9471fe422c92d1a79b3cfcf2aac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b85da66243efd91e7c606c42f17da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032be31d45c3e7d63d4637a93ecffeba.png)
【知识点】 由导数求函数的最值(不含参) 已知函数最值求参数 根据极值点求参数