题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151934-45051.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151934-10374.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151934-87485.png)
(1)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-73272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151934-10374.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-73272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-96165.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-72953.png)
(3)记
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-51844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-50525.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151934-10374.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-61823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-89294.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-99033.png)
解析
试题分析:(1)因为1是
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-73272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-57455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-61823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-33852.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-56246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-83460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-26122.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151938-41754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-73272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-73272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151935-72953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151938-28603.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151938-92833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151938-65327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151939-17654.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151939-20880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151939-50013.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151939-59289.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151940-22986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-99033.png)
试题解析:(1)由题意知
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151940-57622.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-33852.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151940-58794.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-56246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-83460.png)
ⅱ当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151940-30235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151941-74708.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151942-25182.png)
ⅲ当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151943-36366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151937-26122.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151943-19759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151943-25557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151943-23851.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151944-83032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151944-21722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151944-86805.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151944-34877.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151945-62247.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151945-48628.png)
综上所述,
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-89294.png)
(3)由题意知:不等式
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151938-28603.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151945-24172.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151938-65327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151946-61280.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151939-17654.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151946-96084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151946-48024.png)
ⅰ当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151946-17527.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151946-79544.png)
ⅱ当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151947-64147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151947-49281.png)
ⅲ当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151947-98147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151940-58794.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151947-56981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151947-14608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151936-99033.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151914-33853.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151914-44740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151915-86071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151915-39902.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151915-86071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151915-60229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151915-71494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151916-83717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151916-34134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151916-54196.png)
A.![]() | B.![]() | C.16 | D.-16 |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151906-52604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151906-66320.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151907-19814.png)
(2)画出
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151907-19814.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151853-45768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151853-38728.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151853-41449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151853-85943.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151853-85943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151835-45272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151835-17222.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151836-97506.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151836-25168.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151836-12269.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151836-42651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151810-19963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151810-12644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151811-93463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204151811-99651.png)
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