名校
1 . 已知函数
.
(1)当
时,证明:
;
(2)若函数
有且只有一个零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16dd6ac251dafd25f8f3ba9403e8962f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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名校
2 . 定义在
上的函数
,其导函数为
,且满足
,若
,且
,则下列不等式一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e47be130a566205d63c393fa506228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf81a4a39b4e2df4d05dc3b2fcc28150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d900314efb0e4cacb6e5de945b5397.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3 . 已知函数
.
(1)讨论函数
的单调区间;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b5086bfa27bc2fe9003abaecd86719.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1f658cf37df092820e45d6d49de2d0.png)
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4 . 设函数
.
(1)若
,求
在
处的切线方程;
(2)讨论
的单调性.
(3)当
时,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2856dd6407dc432da5378ec0ff0e84b8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228d33f500168b56b1e353dc0196c7ba.png)
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名校
5 . 已知函数
有两个零点.
(1)求a的取值范围;
(2)设
,
是
的两个零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74da4b06c434c46d5a8958ad77f2592.png)
(1)求a的取值范围;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe06a0e2edef0135413937526d7cafca.png)
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2023-07-14更新
|
518次组卷
|
5卷引用:河南省信阳市2022-2023学年高二下学期期末数学试题
河南省信阳市2022-2023学年高二下学期期末数学试题云南省下关第一中学2023-2024学年高二下学期5月期中数学试题(已下线)专题突破卷10 导数与不等式证明黑龙江省哈尔滨市第十三中学校2023-2024学年高三上学期10月月考数学试题(已下线)专题6 导数与零点偏移【练】
6 . 已知函数
.
(1)求
的图象在点
处的切线方程;
(2)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2fd05055fdcc2257f2615e9b9af1579.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e14173b0ef5efb60d7f0ce271e67c6.png)
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名校
解题方法
7 . 已知函数
的图象在点
处的切线
与直线
垂直.
(1)求
的值及切线
的方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe3c7a1c096f5ed99b91d40d71d3ea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b78ca5f6060cd5a7e0df53eb0d4f6d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9231260a2de7949154b7244bf70785c6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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2023-07-05更新
|
257次组卷
|
2卷引用:河南省开封市2022-2023学年高二下学期期末数学试题
解题方法
8 . 设t为实数,函数
.
(1)求
的单调区间与极值点;
(2)求证:当
且
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3610fb596c0cceb266d7658ded8355.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0a911ce0b81c4d6b92b7790ec722ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bdbb55fe14468f3c0fcbafadfb026d8.png)
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解题方法
9 . 已知函数
.
(1)求函数
的最小值;
(2)设函数
.证明:当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0aa9d781436ea046ee072ca8482f5b.png)
,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443e67148cc2281a5b2897b71a9975d8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a2d4b5282aac38a29b9c3575db6d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41c6b9fa72109ba69163a5c6b7874a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0aa9d781436ea046ee072ca8482f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a5598c7de1001d61f4830eb880a61d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17af43cc460a6a7010d51a0c9403d67.png)
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解题方法
10 . 已知函数
,
,且
的最小值为0,
.
(1)求m的值;
(2)若函数
,且
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d16ea7a10ece4f5dfcb8745badda77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda3a446d1e1a5a5078c684d11dc2682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
(1)求m的值;
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ccf88e07730fa7176509db567cff9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c942ca03a8247ef43310dc8bf46526.png)
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