名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422e1a840a1c422b27eb4af9887e84b2.png)
.
(1)当
时,求函数
在点
处的切线方程;
(2)求函数
的单调区间;
(3)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f135deb1c75214cfdf973739186cb75.png)
在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422e1a840a1c422b27eb4af9887e84b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6369ea989d998028ed1474f6645ec9a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150e8e4ca6aa729a72a6a17c36b8ebfe.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f135deb1c75214cfdf973739186cb75.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573196334628864/1573196340961280/STEM/9caf7d4dbb4d467ebf8f55fb9fbf51c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130ab7a635323d182a0da76e9fe25aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-05更新
|
1719次组卷
|
4卷引用:海南省华侨中学2019-2020学年高二(6月)第二次阶段性考试数学试题
海南省华侨中学2019-2020学年高二(6月)第二次阶段性考试数学试题2017届江苏南通中学高三上期中数学(理)试卷(已下线)《2018届优等生百日闯关系列》【江苏版】专题二 第四关 以极值为背景的解答题四川省绵阳中学2021-2022学年高三上学期第二次模拟检测理科数学试题
2 . 已知函数![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/941bfee8ba284639b17e3c5ca45e9eec.png)
.
(Ⅰ)当
时,求函数
在
处的切线方程;
(Ⅱ)当
时,求函数
的单调区间;
(Ⅲ)若函数
有两个极值点
,不等式
恒成立,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/941bfee8ba284639b17e3c5ca45e9eec.png)
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/668c37e7a5d348f88154c9f4139406da.png)
(Ⅰ)当
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/40a821a25acc410a823f4ab57e185cc9.png)
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/f256203eb65d48ddbee669c184460f09.png)
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/fb38c5197bf14615912a755e67ebe123.png)
(Ⅱ)当
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/1e1a7b014a6a449e8e88eaa9330e8c11.png)
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/f256203eb65d48ddbee669c184460f09.png)
(Ⅲ)若函数
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/f256203eb65d48ddbee669c184460f09.png)
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/ce50321fb3b840c69354ed6c0385474f.png)
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/c0779b71ba4642fb91449d3b4d0d0824.png)
![](https://img.xkw.com/dksih/QBM/2016/11/26/1573187448020992/1573187453812736/STEM/d30c053eb3d64d37b8f58ab19a903efb.png)
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3 . 已知函数
.
(1)若曲线
在点
处的切线方程为
,求
的值;
(2)设函数
,其中b为实常数,试讨论函数
的零点个数,并证明你的结论.
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698269696/STEM/5e41b1315d194826adcdefb5d960408a.png)
(1)若曲线
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698269696/STEM/6bb20abc319a40ca91707f4c38136951.png)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698269696/STEM/b8175a2d98f643b589ad48d6223046f8.png)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698269696/STEM/2a8cadf8a8844792bf6fd16aa4d8f4ec.png)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698269696/STEM/6589f59611224368a4513dc1cc41d648.png)
(2)设函数
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698269696/STEM/534dd2379a9a456ba21cf924eb8cd1a9.png)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698269696/STEM/18e19d48f2e848a8a1b80713818da8ac.png)
您最近一年使用:0次
2016-12-04更新
|
311次组卷
|
2卷引用:2016届海南省农垦中学高三第九次月考理科数学试卷
解题方法
4 . 已知
是方程
的两个不等实根,函数
的定义域为
,当
时,
恒成立,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9167ddaf2fea2a8a1616b5a871e196c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e06628aa6ebaf905847f81147ce028c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351629c193354cdcf202133052e45028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eba583e37243f3ba166bd1c11e58498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2405c4822bceae1cf191edb502d3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
495次组卷
|
2卷引用:2016届海南省农垦中学高三第九次月考理科数学试卷
5 . 设函数
.已知曲线
在点
处的切线与直线
垂直.
(Ⅰ)求
的值;
(Ⅱ)求函数
的极值点;
(Ⅲ)若对于任意
,总存在
,使得
成立,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/9ea36c132a324bfda7aae3fc9097530c.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/cdbe9b9f8e55445f8a151e715d71bfde.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/f3d40162a8a1488b854922be2b149f43.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/f511a8e7f0474a5983b1bb35f25be68d.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/028b80e020f04996bda59ea1d26b3381.png)
(Ⅱ)求函数
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/79db675f4ef64498a0028514fb2937ae.png)
(Ⅲ)若对于任意
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/ce20d751286b4b9f8370ed78f3d2d84a.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/4da6552d941d45f0a7a54742e3631cc4.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/b75a9c73f59047e19620907b06bf6fbf.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927734513664/1572927740108800/STEM/1627b9c8a01946ffb574f18dc06b0bd5.png)
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解题方法
6 . 设函数
,对任意
,不等式
恒成立,则正数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8efc5bdefdf231a981e12e9fe1eb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7229d6b13f2fa64dbc2221dba5be9672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a083b6d1a212f0d38a8f8e58a729e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
780次组卷
|
2卷引用:2016届海南省农垦中学高三考前押题理科数学试卷
7 . 已知函数
.
(Ⅰ)若函数
在
上是减函数,求实数
的最小值;
(Ⅱ)已知
表示
的导数,若
(e为自然对数的底数),使
成立,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/f5ea7de2d4524f2392cab0caf4a3502a.png)
(Ⅰ)若函数
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/1124955f024645b7bf1cc385ee47c88c.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/282574f6072d4f11bcda46981b52cae4.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/67eac0a0b8374d9099bae2674e5ab3eb.png)
(Ⅱ)已知
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/a65750dcc63a4e91b3f92ca9eba267a7.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/1124955f024645b7bf1cc385ee47c88c.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/9a1ece5054b34359b31d3a564101853f.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/aaf926fc17434281a296c12c131b0a52.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927424184320/STEM/67eac0a0b8374d9099bae2674e5ab3eb.png)
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8 . 曲线
在点
处的切线的倾斜角为
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927423741952/STEM/60bf9603b05f410eb3f9091eedb09a17.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572927417933824/1572927423741952/STEM/753091e9a508495da881b5c041d15324.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 已知函数
,其中
是自然对数的底数,
.
(I)若
,求曲线
在点
处的切线方程;
(II)若
,求
的单调区间;
(III)若
,函数
的图象与函数
的图象有
个不同的交点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62a19e7b41d4e52ed3a44b6f5e7ceb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08d2203f96de4de7d62e06f93c010b8.png)
(I)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c887da0c850acf41ab249cc262ae39.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98bf11f4c4a4dc27f1e47ab56645d584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(III)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4abdd08d7e7a1925507679c6ff46b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb179ae0f24e02c6fa943919ccaf87a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-04更新
|
581次组卷
|
2卷引用:2016届海南省华侨中学高三考前模拟理科数学试卷
解题方法
10 . 已知函数
在
处取得极值.
(1)求函数
的单调区间;
(2)当
时,
恒成立,求实数
的取值范围;
(3)当
,
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61082b7e56bb497b4fa348427024dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799611adb1bc1d00bcf74cb2126e9cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb541ef2403a14721807cf2a9a5172e.png)
您最近一年使用:0次