解题方法
1 . (1)证明:当
时,
;
(2)已知函数
,若
是
的极小值点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acbfad5866c69207ec8ca7f39fe7c7d.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0172d1295992e244650b29b964afc052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知函数
.
(1)讨论
的单调性;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b060a1a793fa7d536d5e733e5f82d9.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf1b1edc850b3a0aca5796830a6ce261.png)
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解题方法
3 . 已知函数
.
(1)当
时,证明:
.
(2)若函数
,试问:函数
是否存在极小值?若存在,求出极小值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101e3891ef8ae75f240e6081b9d0dc81.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b12f2ff24c52fded1dfd0f0b6940a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f88baa414c8b4a16a46234b7b1d874d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d85caf6029742b5c99994233f76e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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解题方法
4 . 已知函数
.
(1)若函数
在
上是增函数,求正实数
的取值范围;
(2)当
时,求函数
在
上的最大值和最小值;
(3)当
时,对任意的正整数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac15cac5b3af917dfc947318d968121.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)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/b448fe164c2c2931805e3b3847dcdd75.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5e5ba3a62f61ff22319d3decfdc48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/742254b2bd8972eb9d52341ed2ef98f7.png)
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5 . 已知函数
,有两个不相等的正实数
,使得
.
(1)求函数
的单调区间;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd8466184d6263e1e03cf86845f9d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e56037bf226622cbbc904175d1bd5f3.png)
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6 . 已知函数
,其中
.
(1)讨论
的单调性;
(2)若
有两个极值点
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1009335ff006785dc8acaf2b955f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de11c4103b6b4f702ff0728f2a6161fe.png)
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7 . 已知
.
(1)求
极小值点的最大值;
(2)证明:当
时,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa98d01d1a048092f8807da9c036376.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a0c3b1c8baa969ab154985e56ffc16.png)
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8 . 已知函数
,(
为自然对数的底数).
(1)求曲线
在
处的切线方程
(2)若不等式
对任意
恒成立,求实数
的最大值;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8294bb352cef50b3a8961fcf0474aa6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e69e0bad37111c1169746941ac1f833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f47dd5fc03cf0d593fcf67b5d18d1c2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bac345bdfae4f716fde3946ed3708c2.png)
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解题方法
9 . 已知函数
.
(1)若
恰有两个极值点,求实数
的取值范围;
(2)若
的两个极值点分别为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125c0225ea4ef140fd3236739a9aa024.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ced2ceab6d52a14af4d477a9ff09823.png)
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2024-04-01更新
|
521次组卷
|
4卷引用:甘肃省武威市天祝第一中学、民勤县第一中学2023-2024学年高二下学期第一次月考数学试题
甘肃省武威市天祝第一中学、民勤县第一中学2023-2024学年高二下学期第一次月考数学试题吉林省珲春市第一高级中学、图们市第二高级中学2023-2024学年高二上学期期末考试数学试题(已下线)专题07 函数的极值和最值的应用8种常考题型归类【好题汇编】-备战2023-2024学年高二数学下学期期末真题分类汇编(北师大版2019选择性必修第二册)青海省海东市第一中学2023-2024学年高二下学期第一次月考数学试题
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解题方法
10 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f28d658a855c6ae50d73616b56eb72.png)
(1)若
,求实数
的取值范围;
(2)设
是
的两个零点(
),求证:①
;②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f28d658a855c6ae50d73616b56eb72.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4f1c5ef4da03c0e365ceb11c9e6f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7996c8703d622f56fe00ca3b59c79881.png)
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