1 . 已知函数
.
(1)求函数
的单调区间;
(2)若方程
有两个不相等的实数根
,证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e743c856e5a9ea87b648ddd6db18225.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b03bd752ef413ecaa694aa0dd306daa.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b72a2ca9701d7e398e4b0e77b5c4e507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e743c856e5a9ea87b648ddd6db18225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aade8e4f24c0218a723cfdfe13c4420e.png)
您最近一年使用:0次
解题方法
2 . 已知函数
,
.
(1)求
在
处的切线方程;
(2)当
时,
,数列
满足
,且
,证明:
;
(3)当
时,
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d986f7e47d288006e99ee7dcfe04e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d4457c1e88f428c2e98770959f7a2e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e75f1050d7eafd80ac379f0fedf2fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6f4a302d3a9023c0a82b889f4ba918.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2251dc81292a17b6e6bf8a4beefd06af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b462bac5f3e21319598d52cfc75414fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfad06200477816cf838c4ca01817fd9.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
.
(1)当
时,证明:
.
(2)试问
是否为
的极值点?说明你的理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc3eb38deba5a3008e2ee5026b7d2865.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99923994f2c1721fc07450b4b9656980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c5fdeae3d9934cbc3f916bd7fbf496.png)
(2)试问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2024-01-09更新
|
548次组卷
|
4卷引用:贵州省黔东南苗族侗族自治州2024届高三12月统测(一模)数学试题
名校
解题方法
4 . 已知函数
,
.
(1)求函数
的极小值;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331c29cbc908d8aa91d85809437d9f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9489607c09fa9b0e8ea1a00beb9bf3d4.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92acace17d43431c5d414cdc3b624fe2.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec25b9d7ca47b780a744c2ebbf31d925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
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2023-09-29更新
|
397次组卷
|
2卷引用:贵州省2024届高三适应性联考(一)数学试题
5 . 已知函数
在
处取得极小值
.
(1)求实数
的值;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687eec4bc7c461e5439659a5c4ff541d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347f27a9c4beb03c9cdd26271cb2a21.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d4018c4e91641f611df930251d00d2.png)
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2023-08-03更新
|
308次组卷
|
2卷引用:贵州省威宁彝族回族苗族自治县第八中学2023届高三数学(文)冲刺卷(二)试题
6 . 已知函数
.
(1)判断
的导函数在
上零点的个数,并说明理由;
(2)证明:当
时,
.
注:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aac7512e70d2bba71cef5558a3973f3.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c41df63267cd4a9e7dd9b6af0526ef.png)
注:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e2ae6e8274a3b0d2b3dd3eb211baa0.png)
您最近一年使用:0次
2023-05-09更新
|
552次组卷
|
3卷引用:贵州省部分高中2023届高三模拟考试数学(文)试题
解题方法
7 . 已知函数
有两个零点
.
(1)求
的取值范围;
(2)求证:
(其中
是自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3c53e08545a3fb2094d5acb9bf759c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546a1ee9369c1c238e3e9ff1bb4a236e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
您最近一年使用:0次
8 . 已知函数
,
.
(1)求函数
的最小值;
(2)若
在
上恒成立,求实数
的值;
(3)证明:
,e是自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a1f250516fdeda429f8ee1eb7985a23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4dc5ac45016b772f5c5b07a53677e50.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c01ac2a7f6ad7e03cb7a61daefab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd2acabf2029810b6e82b59bcd4fe86.png)
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2022-04-10更新
|
495次组卷
|
2卷引用:贵州省普通高等学校招生2022届高三适应性测试数学(文)试题
名校
9 . 已知函数
.
(1)求曲线y=f(x)在点
处的切线方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cb699d45226818c516d5fca0df8271.png)
(1)求曲线y=f(x)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb1d916a4f922b2f5ca8f5ad90687c5.png)
您最近一年使用:0次
2021-12-17更新
|
440次组卷
|
5卷引用:2019年贵州省铜仁市第一中学高三上学期第二次模拟考试数学试题(文科)
2019年贵州省铜仁市第一中学高三上学期第二次模拟考试数学试题(文科)2020届贵州省铜仁第一中学高三上学期第二次模拟数学(文)试题湖北省枣阳市高级中学2018届高三上学期10月月考数学(文)试题陕西省渭南市蒲城县2021-2022学年高三上学期期中理科数学试题(已下线)高二数学下学期期中精选50题(压轴版)2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)
10 . 设函数
.
(1)讨论函数
的零点个数;
(2)
是函数
的导函数,当
时,函数
有两个零点
、
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b641c9767b336c492bbae5894c2440ab.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a9bb26472ca40b8a619bfd9ea06a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1accee9c5e4a179d9a69cc7b98d2545e.png)
您最近一年使用:0次