名校
解题方法
1 . 已知函数
.
(1)若
,求
在点
处的切线方程;
(2)令
,判断
在
上极值点的个数,并加以证明;
(3)令
,定义数列
. 当
且
时,求证:对于任意的
,恒有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb46a163897842c1fe507d8fca253bc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa80a12751a326ffabe3115ff779983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0138235d884d203490107787ea2e2830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff61248b4e57f4f9f5b2d9ab74a82ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06b9066e5f16f7a4c2ccc88d48fbea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fee9e71a4c714607f4b7af44337c411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad94568bce23439be8ded967d870c98.png)
您最近一年使用:0次
2 . 设函数
为自然对数的底数.
(Ⅰ)当
时,求函数
在点
处的切线方程
,并证明
恒成立
(Ⅱ)当
时,设
是函数
图像上三个不同的点,求证:
是钝角三角形.
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/49385dd72998445db1c07bfc291b5053.png)
(Ⅰ)当
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/ea144e44ed60445591729c4464f3c9b1.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/e685c5bac9e84dc19026b6b5795f47c9.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/06627a4147604c26b4e5b1075595f606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352221fb8d68a641121d2ff054d28a5e.png)
(Ⅱ)当
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/dd43941ae4f947078962ee4fd598fbf8.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/bc6b4e75e9e6480ca41ff2a80f91c4da.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/766834dbb1bd469d8f620d339804bdeb.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932608655360/1572932614397952/STEM/60c19b4e0a554596837ebf0fd6dfa934.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
在点
处的切线平行于直线
.
(1)若
对任意的
恒成立,求实数
的取值范围;
(2)若
是函数
的极值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aeedea4789c7a84a024b4f04a685f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea59cee971344ed593ff082a65d177c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2abde3fa29f92916a5c6767f4683ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2448ff8cee34c60c5ff70dd059693146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e330a579e28c7d8569f0d0fd688264d.png)
您最近一年使用:0次
7日内更新
|
583次组卷
|
2卷引用:福建省福州市八县市一中2024届高三模拟预测数学试题
名校
解题方法
4 . 已知抛物线
的焦点为F,O为坐标原点,抛物线C上不同两点A,B同时满足下列三个条件中的两个:①
;②
;③直线AB的方程为
.
(1)请分析说明A,B满足的是哪两个条件?并求抛物线C的标准方程;
(2)若直线
经过点
,且与(1)的抛物线C交于A,B两点,
,若
,求
的值;
(3)点A,B,E为(1)中抛物线C上的不同三点,分别过点A,B,E作抛物线C的三条切线,且三条切线两两相交于M,N,P,求证:
的外接圆过焦点F.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5990425fae355d2ba6a8ad45e0dab616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd73cb091ac6b2acb4c744744a9d166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68831f427cd565ac3cc341024c9a422.png)
(1)请分析说明A,B满足的是哪两个条件?并求抛物线C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8a5982a53874dd3e97d9af6d7942ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbb6cae4ac201f350e9856544320303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687a8b9b8bdaca532100e41cb11d331b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0be44077d42cfffece905b1af13e000.png)
(3)点A,B,E为(1)中抛物线C上的不同三点,分别过点A,B,E作抛物线C的三条切线,且三条切线两两相交于M,N,P,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23b488f961d9fde37feb7f5c497c0d9.png)
您最近一年使用:0次
名校
解题方法
5 . 记集合
,集合
,若
,则称直线
为函数
在
上的“最佳上界线”;若
,则称直线
为函数
在
上的“最佳下界线”.
(1)已知函数
,
.若
,求
的值;
(2)已知
.
(ⅰ)证明:直线
是曲线
的一条切线的充要条件是直线
是函数
在
上的“最佳下界线”;
(ⅱ)若
,直接写出集合
中元素的个数(无需证明).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8ed79e83f9896873e80c3c4b5a935d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bf53ee2722352957ab61f90a49daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54ade3f669537d031a2be1b4f24a626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f4d45f004ca5fbf9a9bb4f0eef8232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165beb63772ec0f7797a71646d0a1ebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f4d45f004ca5fbf9a9bb4f0eef8232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7cc26a0fe4103db9229df034d5aa70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf2f55da363aa19912ee465d3eb2737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063bb2a5c220db357fa36417de213ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da66a74e8ab43f08d4b3949bb7d24e4.png)
(ⅰ)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f4d45f004ca5fbf9a9bb4f0eef8232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f4d45f004ca5fbf9a9bb4f0eef8232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a669064772daefdeb12c3ebaf01a581f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a494f5a36475e96c7bc69589f70c3a86.png)
您最近一年使用:0次
2024-05-07更新
|
479次组卷
|
2卷引用:福建省福州市2023-2024学年高三下学期4月末质量检测数学试卷
名校
6 . 已知双曲线
的上、下顶点分别为
.
(1)若直线
与
交于
两点,记直线
与
的斜率分别为
,求
的值;
(2)过
上一点
作抛物线
的切线
和
,切点分别为
,证明:直线
与圆
相切.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ff07459dc1549f2a66429eca9829e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a8d6991873e79b298984a95b8954b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fda21944581898ccb13c7d4641b7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
您最近一年使用:0次
7 . 已知函数
,
且
.
(1)证明:曲线
在点
处的切线方程过坐标原点.
(2)讨论函数
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92f7136e7967137f1000e4de40d4bf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)证明:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,
.
(1)当
时,求曲线
在
处的切线方程;
(2)求
的单调区间;
(3)设
是函数
的两个极值点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1237be7b7b3712cfe108061534ef7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2aabc96b7433bba077ceac76d8f0d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00210f79b04a8f6bc1922433d00bc89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ac3f646599fe63ff886d34750e4e6a.png)
您最近一年使用:0次
2024-01-25更新
|
1822次组卷
|
5卷引用:福建省莆田市莆田第一中学2024届高三上学期第一次调研数学试题
福建省莆田市莆田第一中学2024届高三上学期第一次调研数学试题天津市宁河区2024届高三上学期期末数学试题(已下线)重难点2-4 利用导数研究不等式与极值点偏移(8题型+满分技巧+限时检测)(已下线)2023-2024学年高二下学期第一次月考解答题压轴题十六大题型专练(2)(已下线)模块2专题7 对数均值不等式 巧妙解决双变量练
9 . 已知函数
,
.
(1)若
满足
,证明:曲线
在点
处的切线也是曲线
的切线;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97d51430298d99909a8f673d1039d6f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538f9b0676cc0cd02c09fac51d9e4fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8206742853cbd11f12c833b2f07949ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b24ab2c1aa0979146fbb30b7d72d6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bfeb2f86cf0e842ff71c3d21880fe5.png)
您最近一年使用:0次
名校
10 . 已知函
,
.
(1)讨论
在
的单调性;
(2)是否存在
,且
,使得曲线
在
和
处有相同的切线?证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b162223eb963d4fcd51313cf42f6b181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d88e4b98cabf9806bd67e58f98a1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4cfc4049753f02d44f8a0d09353057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
您最近一年使用:0次
2023-04-10更新
|
1869次组卷
|
2卷引用:福建省2023届高三毕业班适应性练习卷(省质检)数学试题