名校
解题方法
1 . 已知函数
,且
对任意的
恒成立,则实数
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec04941351a00a780215d7ee1ab3465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2017-05-21更新
|
1890次组卷
|
4卷引用:【全国百强校】河南省南阳市第一中学2018-2019学年高二下学期第四次月考数学(理)试题
名校
2 . 已知
,
.
(1)当
时,
为增函数,求实数
的取值范围;
(2)设函数
,若不等式
对
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b667db3e1a239e2dce88689898f9a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3e0c1b288d8cc073a1c80d16722529.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbb01a7f5e9861aa185c6c63fcd58c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5937511c3c177a6722e7004ab4d897e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d2458760f26f868ea1dadb5814594b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff33c61648237bd4076d6a7168c9d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)求曲线
在点
处的切线方程和函数
的极值;
(2)若对任意的
,都有
成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10681ce4d8d4149898debf5dac7ac826.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c3d56ad65950f7e9353f1a63b0302c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ff3dc2c8ff8c85033f84dee00b4bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
4 . 已知函数
,
其中
,
(1)若
是函数
的极值点,求实数
的值及
的单调区间;
(2)若对任意的
,
使得
恒成立,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3b5378d1d1455447aed8c1d8c01e1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20a0cc93596a87dceb17540406b5c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d5a5e70f64f0933ae1e4ddec5fa2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4393370ddddc3ad354aee89c549c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/293d639e67df2da17966a567db2656e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-05-03更新
|
920次组卷
|
3卷引用:河南省豫南九校2016-2017学年高二下学期期中联考数学(理)试题
河南省豫南九校2016-2017学年高二下学期期中联考数学(理)试题江苏省镇江市第一中学2021-2022学年高三上学期期初数学试题(已下线)第七章 导数与不等式能成立(有解)问题 专题四 双变量能成立(有解)问题的解法 微点4 双变量能成立(有解)问题的解法综合训练
名校
5 . 已知函数
,
.
(1)讨论函数
在定义域内的极值点的个数;
(2)设
,若不等式
对任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7baac46881798c16564d0e59e94afbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b03502a08184ce385c643053a2f23b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c4b27524cee9197557b528bcf536b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-04-25更新
|
408次组卷
|
4卷引用:2016-2017学年江西省赣州市十四县(市)高二下学期期中联考数学(理)试卷
6 . 已知函数
(
为自然对数的底数),
,若对于任意的
,总存在
,使得
成立,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7aa787194d20e44d2487252a0b9807b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6eb1f68b1af7fe666c7ecd1dcdb3fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/529583d8aefae0d9e0607c0e085b1236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efdee5272cf2b5ce05329c00f52cf097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da19124e917b1a16d0249bcf17327fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2017-04-21更新
|
2138次组卷
|
3卷引用:2016-2017学年浙江省温州市“十五校联合体”高二下学期期中联考B卷数学试卷
名校
7 . 已知函数
,
.
(1)当
时,求
的单调区间;
(2)当
时,若对任意
,都有
成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765129f97e6dc87e4c1c8455160b6b07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6850bb223adfcd537595b6c7de01d7b7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8e1dd8da540badcb9a8f427c5b202e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3485a6e16799fbeeda320f7f3e8db329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2017-04-14更新
|
1133次组卷
|
3卷引用:【全国百强校】安徽省蚌埠市第二中学2018-2019学年高二下学期期中考试数学(文)试题
名校
8 . 已知函数
(
是自然对数的底数).
(1)求
的单调区间;
(2)若
,当
对任意
恒成立时,
的最大值为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddec5196401b8078b07a4f9f5a62240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a380067a20c25338eb0312e8df6c2760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd257a789e86695c655d6f33ecf0798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1198e1f5033eb1780d1e98d36f93d58a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-04-13更新
|
835次组卷
|
4卷引用:四川省成都市金牛区成都市第八中学校2018-2019学年高二下学期期中数学理科试题
名校
9 . 设正数
,
满足方程
,若不等式
有解,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/40a94b7dd32b0e20ee7d4952d84bb975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9710edc6dab046523653eb45a7446ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-04-13更新
|
1257次组卷
|
3卷引用:陕西省榆林市绥德中学2020-2021学年高二下学期第四次阶段性考试理科数学试题
名校
10 . 设函数
.
(1)若
,证明:
在
上存在唯一零点;
(2)设函数
,(
表示
中的较小值),若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d40dd42824af0a1e9648c9ffcb49f5b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66dea8b0511ee08a5754cfbcf322539b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2316563595e29fd4279845ab8afc5ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fce155963060b2e5b9147a185897cc.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d1bebc2eebab4a624ba215bbdf1827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ebf57026ef23135a51650331ac85220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377fd49728f7301552ed07294e7b8ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2017-04-11更新
|
1715次组卷
|
4卷引用:【全国百强校】江西省南昌市第二中学2017-2018学年高二下学期期末考试数学(文)试题
【全国百强校】江西省南昌市第二中学2017-2018学年高二下学期期末考试数学(文)试题云南省昆明市2017届高三下学期第二次统测数学(文)试题(已下线)第20讲 不等式恒成立之max,min问题-突破2022年新高考数学导数压轴解答题精选精练(已下线)重难点突破07 不等式恒成立问题(十大题型)-2