1 . 已知函数
,
.
(I)若
,求曲线
在点
处的切线方程;
(Ⅱ)若函数
在
上是减函数,即
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d1ca44afe8a6d31e346d8a7478854d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980a8c4eb822aeb591ceacfe8a7aaa11.png)
(I)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4848a0f1326eef03a92ec09a9a75c6ae.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876d633b005cf98b31b68fc920684dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9258f484e0ab4274b2f47c7a1aa163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876d633b005cf98b31b68fc920684dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 函数
是奇函数
的导函数,
,当
时,
,则使得
成立的x的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bd3d4555a07a93664b8e8a1df194a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9dbb70efb53fdd394d7eb8f7720629c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db7707d6b2754808adefc9b2fb976a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd63b7fc8b8da847887a70c4f07f5cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baac3a18aabb747565e68a043152d614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
您最近一年使用:0次
2019-06-27更新
|
534次组卷
|
2卷引用:陕西省韩城市2018-2019学年高二下学期期末教学检测数学理科试题
3 . 已知函数
.
(Ⅰ)求函数
的极值;
(Ⅱ)若
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1769979066fc6d2f30cd42251070e19c.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56fb7b666a2e912656fb31d7df7ec4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef161dba854f0fd68b747fa3650fdd36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b37b0682cd28144446c5d1c52fb507e.png)
您最近一年使用:0次
2019-05-10更新
|
1445次组卷
|
4卷引用:【市级联考】陕西省渭南市2019届高三二模数学(理科)试题
【市级联考】陕西省渭南市2019届高三二模数学(理科)试题2019届陕西省渭南市高三第二次教学质量检测数学(理)试题(已下线)专题03 利用导数求函数的极值、最值(第六篇)-备战2020年高考数学大题精做之解答题题型全覆盖(已下线)专题05 函数与不等式相结合(第六篇)-备战2020年高考数学大题精做之解答题题型全覆盖
2014·河北唐山·一模
名校
4 . 已知函数
.
(1)求函数
的最大值;
(2)设
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e1fd7a101e0b5e8772e7157e63acf8b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1bf71a953f10ae7d59abb6085a8d29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b1799000d721e9a66f5d9c8ddc7af7.png)
您最近一年使用:0次
2019-01-16更新
|
510次组卷
|
7卷引用:陕西省渭南市临渭区2021届高三第一次质量检测文科数学试题
5 . 已知函数
.
(1)若
是函数
的一个极值点,求实数
的值;
(2)讨论函数
的单调性.
(3)若对于任意的
,当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600c52515953dfa86e4970ddafc71c47.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f039953f09677969db031e357ec8a208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9678090bb2869ac0979478f54be913fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1916320750e3f2edbe6042999029269d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-12-17更新
|
897次组卷
|
2卷引用:陕西省渭南市临渭区尚德中学2020-2021学年高三上学期暑期检测数学(理)试题
6 . 已知函数
.
(1)当
,求
的图象在点
处的切线方程;
(2)若对任意
都有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80f93f17a44e882413d8912250a1b9b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2072fe5a3f23ac574dde4f0abb2fd5e9.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3417699eb4a32521b7ff1f7b2a1d5f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
7 . 若函数
的图象上存在两个点
关于原点对称,则对称点
为
的
“孪生点对”,点对
与
可看作同一个“孪生点对”,若函数
恰好有两个“孪生点对”,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dee5f21342a14553c65df972f2e62b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
“孪生点对”,点对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dee5f21342a14553c65df972f2e62b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82a9f4a34b902951fc29c14bc3ed70e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822187b593e6c8ae8aadb06e61545824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次