解题方法
1 . 已知
,函数
,
.
(1)求曲线
在点
处的切线方程;
(2)证明:
存在唯一的极值点;
(3)若存在
,使得
对任意
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ca7268ec2c0a1f8fc34a45b5f97cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d1fc6f50bf6d0b1504092ac98c5597.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ebcdbf5fd576e70e160e38e663f690.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b60687b8d8b79e40eae1501fbfb909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d1fc6f50bf6d0b1504092ac98c5597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
2 . 已知函数
为函数
的导函数.
(1)讨论函数
的单调性;
(2)已知函数
,存在
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f389a23b0a635912915e241af34fa9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38beb343561c01c2d4210e512d5e95df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c894ca33d1f108f9f5a19f6a6c6c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7847abd5a830ff448f260b5107ac52.png)
您最近一年使用:0次
2023-06-14更新
|
948次组卷
|
7卷引用:山西省运城市运城中学2023届高三第二次模拟数学试题
山西省运城市运城中学2023届高三第二次模拟数学试题安徽省六安第一中学2023届高考适应性考试数学试题河北省张家口市2023届高三三模数学试题(已下线)专题12 导数及其应用(已下线)专题19 导数综合-1吉林省延边州2024届高三下学期教学质量检测一模数学试题(已下线)第五章 导数及其应用 (压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第二册)
解题方法
3 . 设函数
,且
.
(1)求
的取值范围;
(2)若
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef8a3b9e57e3e5266d5c6e2abf3b7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f730cbbb88355e0f2b8ba350ab6b1af1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aba934874cc9f2ab272fdff67ea23bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d7d6e1124df72c7c1e86fcb466704c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c8c68cf8575f884b9db2603d23a02e.png)
您最近一年使用:0次
名校
4 . 已知函数
在点
处的切线为
:
,函数
在点
处的切线为
:
.
(1)若
,
均过原点,求这两条切线斜率之间的等量关系.
(2)当
时,若
,此时
的最大值记为m,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb2fb6043949ffd4a0fc14967e23c90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45dddee525114c09ee0d1205aed6e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b3c8be9aee074c9a3203abace248ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e9d271392e54ef2055c434430a8dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16552a1b3198b61e02f62592431cb583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f06443b381a16ea4a5e39e19794a27.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027830fc47290062692964077ee481e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f12c60294fc2faefcf22ab41369d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fd33f65db812076a6f22f2cd8fa0f4.png)
您最近一年使用:0次
2023-03-31更新
|
838次组卷
|
3卷引用:山西省运城市2024届高三上学期期中数学试题
名校
解题方法
5 . 已知函数
.
(1)证明:函数
有且只有一个零点;
(2)设
,
,若
是函数
的两个极值点,求实数
的取值范围,并证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3dbfe9740c36d870eca2f8e8ba4125c.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a493ec20852adec9c38e687e5830d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/716062b80440f88a5a5187a6d60d5c8b.png)
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2023-03-17更新
|
382次组卷
|
3卷引用:山西省运城市教育发展联盟2022-2023学年高二下学期3月调研测试数学试题
解题方法
6 . 已知
.
(1)求证:
恒成立;
(2)令
,讨论
在
上的极值点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6064ea5c9236e2ccbd91de0368c67a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ba34ec42d35224b021c44eecacbcb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f1e76aaf12e83bd85df89b42ab2eef5.png)
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2023-01-10更新
|
375次组卷
|
2卷引用:山西省运城市2022-2023学年高三上学期期末调研测试数学试题
名校
7 . 如图1,在梯形
中,
,
于
,且
,将梯形
沿
折叠成如图2所示的几何体,
,
为直线
上一点,且
于
,
为线段
的中点,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/3eb30231-6257-4781-aa49-b6426b7f4664.png?resizew=359)
(1)证明:
;
(2)若图1中,
,求当四棱锥
的体积最大时,平面
与平面
所成锐角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c897a54f2e36bc4b52fba74b41c89d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f0ad2f5858a0d4cec0b204118732ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7471908a0a105f024773d398576a0f2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b62ce0cbffa4758c7a0e6fb7ca4d24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/3eb30231-6257-4781-aa49-b6426b7f4664.png?resizew=359)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e496f2946a30bfe0264f7512c5c66328.png)
(2)若图1中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09219dbd440c70d66bf2bf8b4c2bfe2f.png)
您最近一年使用:0次
2022-12-14更新
|
272次组卷
|
3卷引用:山西省运城市稷山县稷山中学2022-2023学年高三上学期12月月考数学试题
8 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)讨论
的单调性;
(3)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be436e9c64d751b4f08b9b6dd9cddb3d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc104100ab653c1ca817ddf5327f3101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f4eff3125c5e63a994ba1ad5be58e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add3bd85b46f606d8ddb4d249a8a0fee.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e06d02e1cde6f8103d61f9a0c4717a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e38a1f0197ef018d19bc2003f91d72a.png)
您最近一年使用:0次
2022-10-21更新
|
382次组卷
|
2卷引用:山西省运城市薛辽中学2022-2023学年高二上学期10月第二次月考数学试题
解题方法
9 . 设函数
,其中
,设
为
的极值点,
为
的零点,且
.
(1)求
取值范围;
(2)证明:
.(注:
是自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f467fd2634950cb622bb6aa74ad199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9ec7ab6208a274feda4d9bf7ac808c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64df36fd0b37b72d36fe21e10f5d67f5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03e483e8a37a8e0e1fb327f99ad93ea.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016c2e362804ae775dd70c7c52d2ba8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
您最近一年使用:0次
10 . 已知函数
,
.
(1)求函数
的单调区间,并探究数列中1,
,
,
,
,
的最大项;
(2)设
,若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f53f81bca037a4383c1fab122a3cd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c7ce4d69049b07ab88be410dace294.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0212732f733e20e61b4ece6d4ed18c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc9369554df2219c273a2a8b4211c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a2472fa6ae8db0ae96b7880d5bff72.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3bea0b23fc5db579f5cdca0d0ff31e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b50f452a112b188741a3c6fa3fde6f.png)
您最近一年使用:0次