1 . 已知平面直角坐标系
中,有真命题:函数
的图象是双曲线,其渐近线分别为直线
和y轴.例如双曲线
的渐近线分别为x轴和y轴,可将其图象绕原点
顺时针旋转
得到双曲线
的图象.
(1)求双曲线
的离心率;
(2)已知曲线
,过
上一点
作切线分别交两条渐近线于
两点,试探究
面积是否为定值,若是,则求出该定值;若不是,则说明理由;
(3)已知函数
的图象为Γ,直线
,过
的直线与Γ在第一象限交于
两点,过
作
的垂线,垂足分别为
,直线
交于点
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8aaa5d33b4c673b664578193b78e79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cca39b30b0b8e769293e13546b91f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646e11d5bff57e56ce82c2339f2d71ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ca1b693159b7ade34ab038d76ad09.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
(2)已知曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e21bbe81b7bab2524b583755646c9d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300b43b536c82a9727733ec0ac29d77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e981f647365c358670c0b58d840a244a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51c452e67d9c808a4f637738a5c2b61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2034b7068a0db8671c75e56180be1c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40304b883f3d23bbf066bc0af3c09862.png)
您最近一年使用:0次
解题方法
2 . 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
3 . 已知函数
,在点
处切线方程为
.
(1)求实数
的值;
(2)讨论
的单调性;
(3)设
为两个不相等的正数,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd403f29997195ac8a6e715f98815a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f6ed76662695d4c711be57a16c3197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
您最近一年使用:0次
名校
4 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)设
,求函数
的极大值;
(3)若
,求函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e712fd8e9a66a77132794a2d7c215d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a630ae65a7d8a8ecdc0a540ad5b688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757e183e8ecf5368d59fe6e6d41ab92d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2024-04-10更新
|
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5卷引用:福建省厦门市湖滨中学2023-2024学年高二下学期期中考试数学试题
5 . 已知函数
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ed92f58d44ee590c425bc741195c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/577e691feafc7b4972dabb6295788f8b.png)
A.![]() ![]() |
B.当![]() |
C.当![]() ![]() |
D.若两个函数图象有两条公切线,以四个切点为顶点的凸四边形的周长为![]() ![]() |
您最近一年使用:0次
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|
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2卷引用:福建省泉州市2024届高三质量监测(三)数学试题
6 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,若
在区间
上的最小值为
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9451a1c116371130ee217dfde60a91a7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b00232b29c9fe2cc1b3f8bcb4dcaad1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811508165a0f0cf31a69c555e0b4ab57.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae018fde08edf0539089f98c17e11ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23fb90e09994fdc6ab02ed6ba664f31f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37757458c29913271a1e3752940c33d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74eb8a7738402df52d4a97262b85ca0.png)
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2024-01-29更新
|
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2卷引用:福建省福州城门中学2023-2024学年高二上学期数学综合卷试题
2024·全国·模拟预测
7 . 已知函数
.
(1)若曲线
在
处的切线方程为
,求
,
的值;
(2)若函数
,且
恰有2个不同的零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b7249d198efda239da7d0a7df85da3.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebb3b7f47e0decd48e64cb32aaa5903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03b6fa19ec8b767282ca3af6e444141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-01-05更新
|
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8卷引用:福建省泉州市安溪蓝溪中学2023-2024学年高二下学期3月月考数学试题
福建省泉州市安溪蓝溪中学2023-2024学年高二下学期3月月考数学试题(已下线)2024年普通高等学校招生全国统一考试数学文科预测卷(一)(已下线)2024年普通高等学校招生全国统一考试数学理科预测卷(七)(已下线)第4讲:利用导数研究函数的零点问题【讲】 高三清北学霸150分晋级必备(已下线)高三理科数学开学摸底考(全国甲卷、乙卷通用)(已下线)第五章 一元函数的导数及其应用(单元测试)-2023-2024学年高二数学同步精品课堂(人教A版2019选择性必修第二册)四川省成都市简阳实验学校2024届高三下学期开学考试数学(理)试题(已下线)广东省清远市2023-2024学年高二下学期期中联合考试数学试题变式题16-19
名校
8 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,若关于x的不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc0969b88e6bac7ca47ad6667476721.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf46dc84732526c826d84a71c407ea89.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538dd8de4fc120baf2c60159369a1661.png)
您最近一年使用:0次
2023-11-20更新
|
572次组卷
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6卷引用:福建省部分校2024届高三上学期期中考试数学试题
福建省部分校2024届高三上学期期中考试数学试题辽宁省部分学校2023-2024学年高三上学期11月期中考试数学试题湖北省部分高中联考协作体2023-2024学年高三上学期期中考试数学试卷湖南省衡阳市衡南县2023-2024学年高三上学期11月期中联考数学试题辽宁省抚顺市六校协作体2024届高三上学期期中数学试题(已下线)专题04 导数及其应用(4大易错点分析+解题模板+举一反三+易错题通关)
名校
解题方法
9 . 已知函数
.
(1)当
时,求曲线
在
处的切线方程;
(2)若
,都有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbae5abe5ed9835811c3847f35ae75a1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397823a7e73578fd1950e699e4cabccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-17更新
|
797次组卷
|
6卷引用:黄金卷03
(已下线)黄金卷03浙江省绍兴市2023-2024学年高三上学期11月选考科目诊断性考试数学试题黑龙江省大庆市肇州县第二中学2023-2024学年高三上学期11月月考数学试题(已下线)专题04 导数及其应用(4大易错点分析+解题模板+举一反三+易错题通关)江苏省扬州市宝应县曹甸高级中学2024届高三上学期第三次月考数学试题(已下线)专题02 函数与导数
10 . 已知函数
.
(1)当
时,求
在点
处的切线方程.
(2)若
的图象恒在
轴上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceeb2013bc0f16ce717d648ce5344bb4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85e883620c375132be155362c980e70.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9071975e8ab2c604f9cce9c40d59ad62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-09-30更新
|
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3卷引用:福建省莆田锦江中学2023-2024学年高三上学期期中考试数学试题