已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4163f3696fef23ca6ce83879129e25.png)
(1)当
时,求函数
的单调区间;
(2)若
都有
求实数a的取值范围;
(3)设
若
使得
成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4163f3696fef23ca6ce83879129e25.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99539706c4001d746c0c42db4b41204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6413626e27fac27f583e45ca28709755.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04663e8c955ff9e4f3bbefc06df246a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5077c6d019446ea660549b49a4d63f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae89594c02d81d3716de55d48e77845.png)
更新时间:2024-04-05 18:14:40
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【推荐1】已知函数
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(1)若
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(2)当
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(1)若
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(2)当
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【推荐2】已知函数
.
(1)求函数
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(2)求函数
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(3)若对任意
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f498051dda4d605fcd7cee4c19dc1409.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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(3)若对任意
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e15997abe05967ca7fc73f56b915241.png)
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【推荐1】已知函数
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(2)当
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(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cca0ec4b4343a6ccd13b652aea1d00c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ea6baecc58836834dff78b68bf09cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643465f87198d68e8946ec675fef16db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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【推荐1】已知函数
.
(1)若
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的单调区间;
(2)若存在
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成立,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21579f1e1a2c5e19222f1e40424ae6e0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
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解题方法
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15516bcf830b0481611bd17b1cca133.png)
(1)若曲线
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(2)设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15516bcf830b0481611bd17b1cca133.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fb76451327d3c0a5c155be4ed8416c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a01cf2049366b2f0172302495f44c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045a5369e2f603406921ebafb84bc88b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c325eb8d56efe097f20d20c9489a5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐3】已知函
,
.
(1)讨论
在
的单调性;
(2)是否存在
,且
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)讨论
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(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d88e4b98cabf9806bd67e58f98a1b2.png)
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