已知函数
,
.
(1)若
,求
的最大值;
(2)若
,求证:
有且只有一个零点;
(3)设
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564c4fed712d627d7dcddb8780bbbd66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a0a547c81fe36ab8c3ea79622ce7ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c013f9f601c9661712ffeab425c386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9200c2ed431157d0cf64276939e8210c.png)
21-22高三上·山东青岛·期中 查看更多[3]
山东省青岛市4区市2021-2022学年高三上学期期中考试数学试题江西省江西科技学院附属中学2021-2022学年高二12月月考数学(文)试题(已下线)一轮复习适应训练卷(6)-2022年暑假高二升高三数学一轮复习适应训练卷 全国通用
更新时间:2021-11-23 08:45:49
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解答题-问答题
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困难
(0.15)
解题方法
【推荐1】设函数
,
.
(1)当
时,求函数
的导函数
的值域;
(2)如果
恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1fff07bb5458cbe876d27cc328c2d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.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
|
困难
(0.15)
【推荐2】已知函数
,
.
(Ⅰ)当
,
时,试比较
与1的大小,并说明理由;
(Ⅱ)若
有极大值,求实数
的取值范围;
(Ⅲ)若
在
处有极大值,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b75c4aceed56942dd4ede98ea66f7b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(Ⅰ)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/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅲ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb99b7dd8d1a836186482677de18870.png)
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解答题-证明题
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困难
(0.15)
【推荐1】设
,满足
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(1)证明:若
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(2)若存在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e761714f6940c2c06c5750e2ed80cc4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fbd27b6b4143c730ab9d36393a5fe14.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac247d375e0da7fddafad1aa8186aa51.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4439c7de7291f79def06d548603de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa3205b1df826d63914dcb55bb3ab43.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
名校
解题方法
【推荐2】设
,
.
(1)当
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(2)当
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;
(3)证明:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f77c845f50ab193151748aa67ea2b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee5a36044656b35fb431b609cde6d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c67a7e28dba059006021a2e2105f538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fad32850af0f1dd8b57e9ad01868f7f.png)
您最近一年使用:0次
解答题-问答题
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困难
(0.15)
【推荐1】已知函数
.
(1)若不等式
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的取值范围;
(2)若
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,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef889b4685f91ee649e927747c91862.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4091973f9ac170d4289b830d5db23825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a6ddb8ec5abc0a8ee18ba4f5cbf717.png)
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困难
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名校
【推荐2】已知函数
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(1)求
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(2)设
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