1 . 已知函数
,
为
的导函数.
(1)若
,求实数
的取值范围;
(2)若存在
,
,且
,使
,试判断
的符号.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b837b1cc5c196dbea3da98c1aed3fce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c01ac2a7f6ad7e03cb7a61daefab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8440725e1df5ca0990b572dd84127914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d9712c3b25f3030e166e136d3a4686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9ba50ede8ef97b843accf839fef5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f458af0cedcd422e4118b6a773a5fa.png)
您最近一年使用:0次
2 . 已知函数
.
(1)求
的极值;
(2)判断
在
上的零点个数,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c48b58686218334cacf9c4e9cb7430e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8853bc37f10766093e9d6db1e34116ba.png)
您最近一年使用:0次
3 . 已知函数
.
(1)讨论函数
的单调性;
(2)若函数
有且仅有两个零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15248fda64819646fb6fc552be647d6.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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名校
4 . 已知函数
.
(1)如果
,求曲线
在
处的切线方程;
(2)如果对于任意的
都有
且
,求实数
满足的条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94136a5fcb9f6d52342f1a572c3d5b54.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba0cdede7f0a093df20271a6d2ea53c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d02059613da3797ae406925b6ee5b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c3319647314c3b6d82958a909acd2a.png)
(2)如果对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138f6987cd2ee9e56b2ac80e84f9e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17af43cc460a6a7010d51a0c9403d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-06-16更新
|
219次组卷
|
3卷引用:河南省濮阳市2024届高三第三次模拟考试数学试题
名校
解题方法
5 . 已知函数
,其中
.
(1)当
时,求
的最小值;
(2)证明
有且仅有一个极小值点
,并求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965e90a95ecaa0130fb32152cd7fb065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03e483e8a37a8e0e1fb327f99ad93ea.png)
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6 . 设函数
.
(1)讨论函数
的单调性;
(2)若
,讨论函数
的零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98df4fa31d61157e294ef30130bb620.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e7693ec68924d30b448b3425c0803c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2024-04-16更新
|
707次组卷
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2卷引用:河南省信阳市新县高级中学2023届高三第一轮适应性考试(二)数学(理科)试题
名校
7 . 已知函数
.
(1)若
,讨论
的零点个数;
(2)若
是函数
(
为
的导函数)的两个不同的零点,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a441ed40dca1a0f8c5ed0253d1ca300.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab42358409a44ea7a55fe532fe66ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b550cb121a3346f8d46b7f7ee2117d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380beb181ed0a48cc486131bba4a4c46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d106beb9c7a567f35e7f3407f41c963c.png)
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2024-03-27更新
|
615次组卷
|
3卷引用:河南省焦作市2024届高三第二次模拟考试数学试题
8 . 已知函数
,e为自然对数的底数.
(1)若此函数的图象与直线
交于点P,求该曲线在点P处的切线方程;
(2)判断不等式
的整数解的个数;
(3)当
时,
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088c23022566d24dd04dc2929481084c.png)
(1)若此函数的图象与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfb7ef57b58601ab8981d92ca374e71.png)
(2)判断不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c142975b0e7fa0d4670bab9001eafba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f0cefbf4abef6b92d203b9a86fd01e.png)
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2024-03-13更新
|
565次组卷
|
3卷引用:河南省济洛平许2024届高三第三次质量检测数学试题
名校
解题方法
9 . 已知函数
,
.
(1)若
的最大值是0,求m的值;
(2)若对于定义域内任意x,
恒成立,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01bbb0e6d81c7589029b69498c37fab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8298a1722644c40ba8bea5b26f5d01.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对于定义域内任意x,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
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2024-03-08更新
|
702次组卷
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3卷引用:河南省焦作市第十二中学2024届高三上学期11月月考数学试题
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbef08291a4b85fee7eb92583af9d94e.png)
.
(1)若
有且仅有一个零点,求实数
的取值范围;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbef08291a4b85fee7eb92583af9d94e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.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/811d01cd3d16897d0309d278bf04d613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7afa854f67f5d686693d2710d41f714.png)
您最近一年使用:0次