1 . 已知函数
,给出下列四个结论:
①当
时,对任意
,
有1个极值点;
②当
时,存在
,使得
存在极值点;
③当
时,对任意
,
有一个零点;
④当
时,存在
,使得
有3个零点.
其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105861d1641ea050b3274e1dac21c6fc.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c7b17b40ac22797b8d263c4eb19653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fc53d1a6192701c1d7364c08fac090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
2 . 已知函数
,
.
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,求
的单调区间;
(3)在(2)的条件下,若对于任意
,不等式
成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799e0db4b64f85b168329f91554e1e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)在(2)的条件下,若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998485ffeb46a0412ff1a0f814429257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11723704c1edf82bd3d5fdb2ad1ef93.png)
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2024-05-10更新
|
1031次组卷
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5卷引用:北京市通州区2023-2024学年高三下学期二模数学试题
北京市通州区2023-2024学年高三下学期二模数学试题(已下线)【江苏专用】高二下学期期末模拟测试A卷(已下线)【人教A版(2019)】高二下学期期末模拟测试A卷云南省玉溪市通海一中、江川一中、易门一中三校2023-2024学年高二下学期六月联考数学试卷(已下线)核心考点3 导数的应用(恒成立,不等式,零点) B提升卷 (高二期末考试必考的10大核心考点)
名校
3 . 设函数
,
.曲线
在点
处的切线方程为
.
(1)求a的值;
(2)求证:方程
仅有一个实根;
(3)对任意
,有
,求正数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c927a4fcfc5c875001648ac315ae17c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
(1)求a的值;
(2)求证:方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a73db674d29eae8f8921eff5944983.png)
(3)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44672d44c44a6bf67ec4243399b0e5.png)
您最近一年使用:0次
2024-04-22更新
|
1314次组卷
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5卷引用:北京市顺义区2024届高三第二次质量监测数学试卷
名校
4 . 已知函数
.
(1)求
的单调区间;
(2)若函数
存在最大值,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22983b32eb20322c3cf319ba7057672f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea30648000de972315baaebe4bdedad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-04-09更新
|
1307次组卷
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2卷引用:北京市海淀区2024届高三下学期期中练习(一模)数学试题
名校
5 . 已知函数
,(
且
).
(1)当
时,求函数
在点
处的切线方程;
(2)若函数
存在两个极值点,设
是极小值点,
是极大值点,若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d933d2a0bf4f181699df4158317a7442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
,则不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c649fa9212e0dab5cdf667db477ec97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-12更新
|
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4卷引用:2024届北京市延庆区高考一模数学试题
2024届北京市延庆区高考一模数学试题北京市第八十中学2023-2024学年高二下学期期中考试数学试题(已下线)综合检测卷(数列+导数)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第二册)湖南省娄底市双峰县第一中学2023-2024学年高二下学期3月月考数学试卷
名校
7 . 已如
.
(1)求曲线
在点
处的切线方程;
(2)判断
极值点个数,并说明理由;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe694e2b74f8b2c4095bfe4661320aa.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a797f72ab97b3411490e3387ddd98fc4.png)
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|
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2卷引用:北京市首都师范大学附属中学2023届高三下旬阶段性检测数学试题
8 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f5745682e5823ffaece03ff00945c6.png)
(1)求曲线
在点
处的切线方程;
(2)求证:
;
(3)若函数
在区间
上无零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f5745682e5823ffaece03ff00945c6.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89f5698f41b542aff4bcebbc81ff92b.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307eabe27b259f882d79a7eef5598492.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若
是增函数,求a的取值范围;
(3)证明:
有最小值,且最小值小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/792c57367bafbfcc9931b68ef0a23cf1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
您最近一年使用:0次
2023-04-25更新
|
1200次组卷
|
3卷引用:北京市丰台区2023届高三二模数学试题
名校
10 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若
在
处取得极值,求
的单调区间;
(3)求证:当
时,关于x的不等式
在区间
上无解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2385eee09c4e5cc6a0f0621c0488b8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47e734b17201fe992be7775714e9558.png)
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2023-03-29更新
|
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|
4卷引用:北京市房山区2023届高三一模数学试题