解题方法
1 . 已知函数
和
.
(1)求函数
的极值;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe3c7a1c096f5ed99b91d40d71d3ea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40900c80cf73306e135214acf5db093f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561800aa679a45da4dbe0e323de1fd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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2023-10-16更新
|
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2卷引用:江西省宜春市上高县2024届高三上学期11月月考数学试题
名校
2 . 已知函数
.
(1)当
时,求
在点
处的切线方程;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d42b2fee2e577658d9cc19c93f5414.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4cf5a355c88dc875ae36f5e617cabd.png)
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解题方法
3 . 已知函数
有两个极值点
,
.
(1)求
的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c687e6ce40534cfbdc3f28a6a91bb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46689d7ca9953fae67991739a281bd6e.png)
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江西省九江第一中学2023届高三上学期12月月考数学(文科)试题吉林省长春市第二中学2023-2024学年高三上学期第二次调研测试数学试题(已下线)模块一 专题5 导数在研究函数性质中的应用B提升卷(高二人教B版)
名校
4 . 已知函数
.
(1)求
的单调区间;
(2)①若
,求实数
的值;
②设
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e8538d50741d72a6df1bd1a3be104.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)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/deda945164283569437cda6976fe35ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c1813da0b95f7f3316df52787e528b.png)
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5 . 已知函数
.
(1)当
时,讨论
的单调性.
(2)证明:①当
时,
;
②
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030de51667a1159750331f002c329247.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a516cde1a212501f90fbb38ace4917ef.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2678f41b1656b225732edc8f8f94fe59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
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解题方法
6 . 已知函数
,
.
(1)当
时,求函数
的极值;
(2)已知
,求证:当
时,总有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3861fc1a50732d928467852a6bd8e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa6aca1b0801e2ebf38631f2dfbe2b4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)当
时,求
的单调区间;
(2)若函数
恰有两个极值点,记极大值和极小值分别为
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70c475a5b59520e528289b4e20c5b33.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbbafd45a7cca8fb0243e0ae85976ea.png)
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2022-03-09更新
|
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8卷引用:江西省南昌市2022届高三第一次模拟测试数学(理)试题
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8 . 已知函数
,
,其中
…为自然对数的底数.
(1)当
时,若过点
与函数
相切的直线有两条,求
的取值范围;
(2)若
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b3fc8ffb451291df0e72b5d9456eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ec0983458f6f31361640afd890cc2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0adfa58467df21fa13761f4d4aa462fe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211aa10d6d9b714e415cefcc6169f2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff295312255e64bfbce36f75a6459914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790b46a94054fee60cbc4cd9e09ed5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf84b70603802c69bdb5de2f6fe3a66.png)
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9 . 已知函数
.
(1)当
时,求
的单调区间;
(2)若函数
恰有两个极值点,记极大值和极小值分别为
,
,求证:
为常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f326aa8f1c524cc4c63fc9020c0b4d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29232deacf4b9a6973900aaf7f64c9f8.png)
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2022-03-09更新
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解题方法
10 . 已知函数
.
(1)证明:
.
(2)求
在
上的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24cea4c793afbf19e16bce2d104eb11.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a6a705c45fd4cdf4fa960e5d0c7f5f1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2ec965488c7e1cea085463c7731285.png)
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