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1 . 已知函数
,若刚好有两个正整数
使得
,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d6f38400f292194e7a3f1813b80a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281106d1eb0462759ab01d17ba958a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38b2d94a54599f59de79261ad3757f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-02-24更新
|
506次组卷
|
3卷引用:重庆市第三十七中学校2018-2019学年高二下学期期中(理)数学试题
重庆市第三十七中学校2018-2019学年高二下学期期中(理)数学试题广东省深圳市高级中学2019-2020学年高三下学期3月线上模拟数学(文)试题(已下线)专题6.2 导数中的参数问题 -玩转压轴题,进军满分之2021高考数学选择题填空题
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2 . 已知
是函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd3c16b36ac31e235d6448f6ce6d053.png)
的一个极值点.
(1)求
的值;
(2)求函数
在
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd3c16b36ac31e235d6448f6ce6d053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f79b8690c922e042e422cda331fbdfc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6f68c45727979cb6c5efc5a810340.png)
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2020-02-07更新
|
489次组卷
|
2卷引用:重庆市大足区2018-2019学年高二下学期期末数学(理)试题
3 . 已知存在正实数
,
满足
,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06407b1bd0b2fed414f0e605dc8e05c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
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4 . 已知函数
,
的图象分别与直线
交于A,B两点,则使得
取得最小值的
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7c4adef3485e8ac6e50d1926365327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d191c099381ac17a6fb1505c6c7dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb4ec07ebcf2052ab8d982ee9670e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-03-05更新
|
490次组卷
|
2卷引用:重庆市第十八中学2018-2019学年高二下学期第一次月考(理科)数学试题
名校
5 . 已知函数
.
(1)当
时,求函数
在
上的最小值;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2925ccf1233a109cf29dd1974f7908fe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cd4fba9a192ed6fc0a495354553c07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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2020-01-01更新
|
535次组卷
|
2卷引用:重庆市巴蜀中学2019届高三下学期适应性月考(七)(理)数学试题
名校
解题方法
6 . 已知函数
,
.
(1)若
存在极大值
,证明:
;
(2)若关于
的不等式
在区间
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f77abf65029bf4014dfea70aded594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03e483e8a37a8e0e1fb327f99ad93ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138f1e6a192aec6a1e80c08a5dfaf35e.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd49807f0c6f3c5ae17b71e81fb5c532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-14更新
|
498次组卷
|
2卷引用:2019届重庆市高三4月(二诊)调研测试卷(康德版)文科数学试题
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7 . 定义域为R的函数
满足
,且
的导函数
,则满足
的x的集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431537df789febf4bc45e3dc23cefaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a863adf4d9cf92b993bc2532ba28ee51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f795380ffd312ba4fba0c1c6797102d5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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8 . 设直线
与函数
,
的图象分别交于P,Q两点,则|PQ|的最小值为______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5ab1f6923041b7f9a4e7bb641ead4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da32a6ba8178a0f2ca44cf4d0069b1c.png)
您最近一年使用:0次
2017-11-10更新
|
801次组卷
|
3卷引用:重庆市铜梁县第一中学2018届高三上学期第二次月考数学(理)试题
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9 . 已知函数
.
(1)若
在函数
处的切线垂直于
轴,求
在
的最小值;
(2)求证:
时,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a3d3b8a6515a7e92be6178a30f014ae.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
您最近一年使用:0次
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10 . 已知
.
(1)讨论函数
的单调性;
(2)若
有两个极值点
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640e526be86f53cb96910f956ec437e0.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed4fd4a1e3506742d9e0df050623d470.png)
您最近一年使用:0次