解题方法
1 . 已知函数
.
(1)若f(1)=2,求a的值;
(2)若存在两个不相等的正实数
,满足
,证明:
①
;
②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa6627e7ce98c5ffb61457de3b3525c.png)
(1)若f(1)=2,求a的值;
(2)若存在两个不相等的正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2037b0bad7c7a312bac1ac0653d9a491.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4b02af22df6e2227efd38c77deba1e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b082285a9dbb8ae0f2def2cdc59e740.png)
您最近一年使用:0次
2022-01-19更新
|
2660次组卷
|
6卷引用:2022年1月浙江省普通高中学业水平考试数学试题
2022年1月浙江省普通高中学业水平考试数学试题(已下线)专题3-7 导数压轴大题归类:不等式证明归类(2)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)专题05 极值点偏移问题与拐点偏移问题(已下线)专题05 极值点偏移问题与拐点偏移问题-2专题03E函数解答题(已下线)重难点突破05 极值点偏移问题与拐点偏移问题(七大题型)-2
名校
解题方法
2 . 已知函数
,其中
,
.
(1)当
时,
的零点为______ ;(将结果直接填写在横线上)
(2)当
时,如果存在
,使得
,试求
的取值范围;
(3)如果对于任意
,都有
成立,试求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b169c3fef0685cc75cfe9e52285c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e8d7d9c43b12ef51f366217af2d5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799b324b514d6044672c133d8fef2dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133cb4bfa780967fce1ef6181f2cf545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)如果对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d81410c357d67b72895494ee50ce592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
您最近一年使用:0次
名校
3 . 设函数
.
(1)判断
能否为函数
的极值点,并说明理由;
(2)若存在
,使得定义在
上的函数
在
处取得最大值,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2f38cf1aca37d11a488c573818bfcc.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce8f59639f85ce4771b178b3f9dd6d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d747e07c2f9c4bf8fed76b88fb47f4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61bf1ec26825646e2a51a4b9cef8126d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2017-04-15更新
|
903次组卷
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2卷引用:2016-2017学年河南省郑州市第一中学高二下学期期中考试数学(理科)试卷
解题方法
4 . 已知函数
,
,
.
(Ⅰ)讨论
的单调性;
(Ⅱ)若
的最大值为
,
存在最小值
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b293ba9c4fcffc09bae870441e442fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc61f22d4852d7d0831b991f6d3556e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65cc39d12bb5794931b8bdcda3265ca.png)
(Ⅰ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86135bd40536042536c1c7bed21d0171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6208895c0e3f31fcc437d2dfc5d18b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba00d1e252590c651fa39df7b00adf9.png)
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2016-12-04更新
|
1437次组卷
|
2卷引用:2016年内蒙古包头市高三学业水平测试与评估(二)数学理试卷