1 . 已知函数
和
.
(1)若函数
在点
处的切线与直线
垂直,求
的单调区间和极值;
(2)当
时,证明:
的图象恒在
的图象的下方.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf88f7ec79fc9e89f1806e1d027d69a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1610bcd07b02c4ed7184ad586b88f373.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e493a2a0d0c1c4cd3c334454419d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561800aa679a45da4dbe0e323de1fd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
名校
2 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
时,设
,求证:函数
存在极大值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5d095a3c0c120d3d702e104b18f780.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e56a5f4ba4f6ee71e597cf24faae2a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ec9445754bfeab7172aa956c2dd7cd.png)
您最近一年使用:0次
2023-07-16更新
|
506次组卷
|
3卷引用:贵州省黔东南州2022-2023学年高二下学期末文化水平测试数学试题
名校
3 . 已知函数
.
(1)求函数
在
处的切线方程;
(2)若过点
存在3条直线与曲线
相切,求
的取值范围;
(3)请问过点
,
,
,
,
分别存在几条直线与曲线
相切?(请直接写出结论,不需要证明)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553e916cbe7f202d8c400aef83b99391.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aefcf9299f5c114ef8a072d3279d625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)请问过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb9e88d3e58141dba299dcd8edc4e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb6fd712d967a36c027693a54f91470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f12f12b6e78f741846da2d56089631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947bca78fd2d7a7436dd9dedbba3baa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b08c0db034208fc9cdc0e7e7817f321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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2023-09-23更新
|
288次组卷
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2卷引用:贵州省黔西南州部分学校2024届高三上学期9月高考适应性月考(一)数学试题
名校
解题方法
4 . 已知函数
.
(1)当
时,证明:
.
(2)试问
是否为
的极值点?说明你的理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc3eb38deba5a3008e2ee5026b7d2865.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99923994f2c1721fc07450b4b9656980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c5fdeae3d9934cbc3f916bd7fbf496.png)
(2)试问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2024-01-09更新
|
548次组卷
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4卷引用:贵州省黔东南苗族侗族自治州2024届高三12月统测(一模)数学试题
解题方法
5 . 已知函数
.
(1)若
,求
的极值;
(2)若
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b0ec81474a43288fbc289f0e524475d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b624d88827e92e12bc0a8f1067cbe72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1faf46d4919a5be683873547aa7d8091.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
,
.
(1)求函数
的极小值;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331c29cbc908d8aa91d85809437d9f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9489607c09fa9b0e8ea1a00beb9bf3d4.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92acace17d43431c5d414cdc3b624fe2.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec25b9d7ca47b780a744c2ebbf31d925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
您最近一年使用:0次
2023-09-29更新
|
397次组卷
|
2卷引用:贵州省2024届高三适应性联考(一)数学试题
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c45d730f7de4d2534217e165831454.png)
(1)求
的极值;
(2)当
,
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c45d730f7de4d2534217e165831454.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef6a9bc8be0f6d89596d91f8c2b3dd8.png)
您最近一年使用:0次
8 . 已知函数
.
(1)过点
作曲线
的切线,求切线的方程;
(2)当
时,证明:曲线
的图象与直线
的图象仅有一个交点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf44d2351245858d92a64bd00357408.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b124fd40dc2ae13fd0c05c90db49e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9412eb2931f9f75d199b94a1fe558e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170785d8eaffa7cb618e52c4580e95fb.png)
您最近一年使用:0次
9 . 已知函数
.
(1)若
,证明:
存在唯一的极值点.
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655d325b121553372ee0fee9c4eb61e2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a323813f130b8311fc70574a2cdd8a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-12-21更新
|
330次组卷
|
4卷引用:贵州省毕节市部分学校2023届高三上学期12月联合考试数学(理)试题
10 . 已知函数
.
(1)若
,求
的极值;
(2)若
是
的两个零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec94a777e5f62833727151ea6bb21424.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19a80063c7bcb52362a94bf389e1b99.png)
您最近一年使用:0次
2023-03-11更新
|
1177次组卷
|
8卷引用:贵州省黔东南州2023届高三第一次适应性考试数学(理)试题