已知函数
.
(1)当
时,求函数
的最小值;
(2)若
,且对
,都
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbdd006d6c6aa4c00282f564718a03a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b66150793c738ead964a3ea4446a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15bcaa4f2cfe412dfd86fbdab3624e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055223b55fa48bae378c61bd6256c702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f15886c1c21d181c73894997edd53fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e8dc00cdc96860c9cbf8ac09677fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
23-24高三上·福建莆田·期中 查看更多[4]
福建省莆田第一中学2024届高三上学期期中考试数学试题第06讲 拓展二:利用导数研究不等式能成立(有解)问题-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第二册)(已下线)第五章 一元函数的导数及其应用(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第二册)(已下线)专题15 导数与三角函数联袂【讲】
更新时间:2023-11-20 21:39:27
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解题方法
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7226b3187ba93db3eec545a374f2107e.png)
(1)当
时,求
的最大值;
(2)若
对任意的
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7226b3187ba93db3eec545a374f2107e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
【推荐2】已知函数
,
,其中
为常数.
(1)当
时,试判断
的单调性;
(2)若
在其定义域内为增函数,求实数a的取值范围;
(3)设函数
,当
时,若存在
,对任意的
,总有
成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133bb541dbb30d83cd28f5c8f0dcec76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e678ba3a3cbdb9cb56ff1f2fc459efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857ef93ef33c8ac31901dfe9f2d03426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2251dc81292a17b6e6bf8a4beefd06af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17641d15644d5fb2c79fd1016b21520f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174426520dc1b3bbc366bca4deaa664.png)
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【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36da216de22e8ea3f1f3c5c1ce4e4f56.png)
(1)求函数
的单调区间和极值;
(2)若
,
对任意的
恒成立,求m的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36da216de22e8ea3f1f3c5c1ce4e4f56.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d4999a846dafaf3fe0ef8708633b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bddc103dd6591a8f0d4146ed287e16be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac0c4f74d16d30a8799b03b41460cfa.png)
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解题方法
【推荐2】已知函数
.
(1)若函数
在
处的极值为
,求
,
的值;
(2)若
,
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/469baf703aa0d2759e3df97be9524dea.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6616da8f7c03dc5d8f1ed993d3cfa25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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【推荐1】已知对任意实数m直线
都不与曲线
相切,
⑴求实数
的取值范围;
⑵当
时,若不等式
总有解,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97752154ca23b228ce862737afa7cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bacd3d4513df3b397828730083a503d.png)
⑴求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
⑵当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f300317aa56697cf09a033235900de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】定义在
上的函数
同时满足以下条件:
①
在
时取得极值;
②
是偶函数;
③
的图象在
处的切线与直线
垂直.
(1) 求函数
的解析式;
(2) 设
,若存在
, 使
, 求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41635a599861d61872aa955b9c50c9b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796f223ffc44127df482e80ba978eb5a.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d93246539f83796d6b2101b7bf0c7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e127daadf14bb6aaf557b717eb27ac.png)
(1) 求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
(2) 设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0b4e9b14a6ff8b00810a4524af794f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d351dea1f897507a70ddd4727e8731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430c14c623b2b6b5e5cf9d2764c983fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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