设函数
为常数
(1)若函数
在
上是单调函数,求
的取值范围;
(2)当
时,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc47b6afee7f1f858a14f10f431ad9b.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40331bff0b126ff5a648b89d88a68450.png)
2019高三·全国·专题练习 查看更多[7]
(已下线)2.2导数的应用[文] -《备战2020年高考精选考点专项突破题集》(已下线)2.3函数与方程[理]-《备战2020年高考精选考点专项突破题集》河北省“五个一”名校联盟2019-2020学年高三上学期一轮复习收官考试数学(理)试题2020届广东省珠海市高三上学期期末(一模)数学(文)试题2020届湖北省鄂东南省级示范高中教育教学改革联盟学校高三上学期期中考试数学(文)试题山西省大同市第一中学2020届高三下学期2月模拟二数学(理)试题安徽省皖江名校联盟2020届高三第一次联考试题(8月) 数学(理科)
更新时间:2019-09-07 09:05:16
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解答题-问答题
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较难
(0.4)
【推荐1】函数
其图像与
轴交于
两点,且
.
(1)求
的取值范围;
(2)证明:
;(
为
的导函数;)
(3)设点
在函数
图象上,且
为等腰直角三角形,记
求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08fddd4f8a9396bad1bbac1ba57c9ee3.png)
![](https://img.xkw.com/dksih/QBM/2016/7/12/1572915712163840/1572915718266880/STEM/ee37b741ab4e4a3b8579f875b488b1b1.png?resizew=13)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4a57fa701747e4b70ce26eb18ab8cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133c30d6ca96a4d8de293da20fbe8f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a73f6325db462bf8e4471ae7fcb2544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6883a85536316c86f456b80081f3bcb.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】函数
,其中
,
.
(Ⅰ)当
时,
在
上单调递减,求实数
的取值范围;
(Ⅱ)当
时,
①
为定值,求
的最大值;
②若
,
,求证:对任意
,直线
与曲线
有唯一公共点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f287e1a80318f659ad793933b7ec1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8c29b297e3ec337c3139c2a1ebed1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0332c53200cf39826b26fd21e713ff.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c9d7f7f9a3e9ec476f5cf7fda97c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4687a02cf2e98c88c2ecbcac26762b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc304a55feec5d8312d3082f1bb91a23.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c9d7f7f9a3e9ec476f5cf7fda97c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23de8565bd5497c09a03cfa1eb988fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3cd66c805956f59e92f40dbaa01203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41d675451121e981aa7ffa0f335a405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐3】已知
,函数
.
(1)当
为何值时,
取得最大值?证明你的结论;
(2)设
在
上是单调函数,求
的取值范围;
(3)设
,当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfb1c5aeda6ed8da2c2c42dc311db7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec8d05eb4b2456cd61289e6eac9af19.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c25c3356646ce4c32bcd34dd86cc75d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c76b8f2ad15b68a83f0689caa63ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f8b260162c0d3e535f1611dbaa74d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c722ebd1a71973d76a8b4967ad6ed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
解题方法
【推荐1】已知函数
的图象为曲线
, 函数
的图象为直线
.
(1)当
时, 求
的最大值;
(2)设直线
与 曲线
的交点的横坐标分别为
, 且
,
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86161d12df385eb4cfec8a8a38277fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b64c687b7b7524c0af9a59c2d89e394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35cca7268f18e3ea78e6dbc9181e679b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4633de9335d15d7685bdecb007a3678c.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7365452e9d5f9478c4286cfd12fc7ee7.png)
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解答题-问答题
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较难
(0.4)
【推荐2】设函数
,其中
且
.
(1)证明:
恰有两个零点;
(2)设
为
的极值点,
为
的零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442f0bde3f799dd9f72a494a16606708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6119aaaa6b3964bca3d41f9652fae6.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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您最近一年使用:0次