已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770ca30049d6a605e6a14c77c7669285.png)
(1)若
时,
恒成立,求
的取值范围;
(2)求证
且
;
(3)当
时,方程
有两个不相等的实数根
,求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770ca30049d6a605e6a14c77c7669285.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d07f9b89b24792b5e5cc639b399ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2ef29128caf9576dc4c2351a034b55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe87e3963967b25166be5503e920a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b327466d2c1761c8bef60fb15cf911b.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008c47204b68ecf7ed24688a60ebe55e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5809a06357f94fc7a2156c7e7af1ed2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7668f040d06a00d873f7168af1faf7ab.png)
2021·新疆阿勒泰·三模 查看更多[3]
新疆维吾尔自治区布尔津县高级中学2021届高三三模数学(理)试题(已下线)专题07 极值点偏移问题-【解题思路培养】2022年高考数学一轮复习解答题拿分秘籍 (全国通用版) (已下线)考点21 导数的应用--极值点偏移问题 2024届高考数学考点总动员
更新时间:2021-05-13 23:10:42
|
相似题推荐
解答题-证明题
|
较难
(0.4)
【推荐1】已知函数
,
,
.
(1)若
,求函数
的最小值;
(2)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d324e2166268414fd1fb8a238016fe9.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a887a383f1dcd08877d5129d5be71ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c2b677157af3b35a7d0f5a907f6e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d324e2166268414fd1fb8a238016fe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0264f2b109cabebf15ab9c9d160451d7.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】已知函数
,
是函数
的导函数.
(1)证明:
在
上没有零点;
(2)证明:当
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b4036b43895d3db590e5fd99a36cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6539638d9b52ac38677ed4f26d4f42b5.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】已知函数
的最小值为
.
(1)求
的值;
(2)已知
,
在
上恒成立,求
的最大值.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd24b7b2825d7ca5061dec8a30d81fa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a1f8ed373823d79f44edbef03e1984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83646f011f4917c57ba86d36aa099263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfdd3d02b54e997cbec983d80f6bafd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e840184e2a73010d8da109f64feabb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94251d5378d0570944b9d6b0a7ff3349.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
,
.
(1)讨论
的单调性;
(2)若
有两个零点,求实数
的取值范围;
(3)若
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eaa6d55cdb24cff59f22f8a09b27160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026d50aeb347823e800aa11442b80331.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780876acd6f251de9b8510f4def91b5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐3】已知函数
.
(1)若
有唯一零点,求
的取值范围;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd491cdb473b58dfd3cd0aa1822906a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb9a0af43fef8df0f6b72b75216d8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐1】已知函数
.
(1)讨论
的单调性;
(2)若
时,都有
,求实数
的取值范围;
(3)若有不相等的两个正实数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/093966ad65af504581626504075fc074.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0097b2a40fd339906bb03607246d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2e0bb6d63b7bcaee92a470d58cc399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若有不相等的两个正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e0e9894eaf071280cdadd80e2af04e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6d77a7ab8632b645e970b679daced7.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐2】已知函数
.
(1)求曲线
在点
处的切线方程;
(2)已知
是函数
的极值点,若
,求证:
(极值点是指函数取极值时对应的自变量的值).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1637f403133c31af02eff0e21c7e00.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f6ed76662695d4c711be57a16c3197.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797ca3d72464b5adf74e7b686e2ffabd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31cdc61764eef3fbe2dc5fafaa2efb39.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐3】已知函数
.
(1)讨论函数
的极值点的个数;
(2)若函数
恰有三个极值点
、
、
,且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b774aef1ae01250c3dbfa16ea77bc1.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)
![](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/d79fc0ce080b8ad8b63ba63259c680b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc69e53616dbd12a8d5d780ed3d84a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bacde908aec2c313978fc4309d82bc.png)
您最近一年使用:0次