1 . 已知函数
.
(Ⅰ)当
时,求
在
上的最值;
(Ⅱ)若对一切
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f772d15193b59d9f15b7fda3bc0be9a.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81926c1658747bfd66e6a535ff039e6c.png)
(Ⅱ)若对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4e4eaf924cfbd3044b8243c0fac674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
您最近一年使用:0次
2020-07-11更新
|
899次组卷
|
8卷引用:东北三省三校(哈师大附中、东北师大附中、辽宁省实验中学)2020届高三高考数学(理科)三模试题
东北三省三校(哈师大附中、东北师大附中、辽宁省实验中学)2020届高三高考数学(理科)三模试题黑龙江省哈尔滨师范大学附属中学2020届高三下学期第三次模拟数学(理)试题宁夏石嘴山市第三中学2020-2021学年高三上学期第二次月考数学(文科)试题河北省冀州中学2021届高三上学期第二次月考数学试题全国名校2021届高三高考数学(文)冲刺试题(二)(已下线)专题06 三角函数-备战2022年高考数学(文)母题题源解密(全国乙卷)黑龙江省大庆市大庆中学2022届高三第二次模拟数学(理)试题(已下线)江西省九所重点中学2023届高三第二次联考联合考试数学(文)试题变式题21-23
2 . 已知函数
.
(1)若
使
成立,求
的取值范围;
(2)若
,证明不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bfecd54416e2e0366376999e752915.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a91d2dbfb76c7db192956e6a680297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ce9235e1efa12b238bb24ca61a0bfa.png)
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2020-07-09更新
|
287次组卷
|
2卷引用:辽宁省大连市2020届高三下学期第三次模拟考试数学(理)试题
解题方法
3 . 已知抛物线
:
,点
是
上的不同于顶点的动点,
上在点
处的切线
分别与
轴轴交于点
、
.若存在常数
满足对任意的点
都有
.
(Ⅰ)求实数
,
的值;
(Ⅱ)过点
作
的垂线与
交于不同于
的一点
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce20ffaee3ed300301985f1d62a2771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efe201e277987f99de9c88323ccd401.png)
(Ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(Ⅱ)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee03d4bb4667b6c345221b6c9b0fa4.png)
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4 . 已知函数
.
(1)讨论
的单调性;
(2)若
使
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bfecd54416e2e0366376999e752915.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a91d2dbfb76c7db192956e6a680297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
5 . 设函数
,
(
),
(1)讨论函数
的单调区间;
(2)若当
时
的图象总在函数
的图象的下方,求正实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d53e84446ab2d482dd8cdfeb27b402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce558b6456154c219d80c62c1225aca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c204be088a8fc6c096eedd5b1e7dc7.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f38feb7a49275d30649db8ba036b9609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)若函数
在
上是减函数,求实数
的最小值;
(2)若存在
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/391a2f15c1508c34569dde6d66820bac.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24b07b4ab790fc45c55cdbb1b601f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856c388e506b4d7b2f183c55c199e42c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-07-08更新
|
284次组卷
|
2卷引用:辽宁省沈阳市第二中学2020届高三下学期第五次模拟考试数学(文)试题
名校
7 . 若不等式
在
上恒成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb3ce0108b6f7087e86e225e2fc0208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-07-07更新
|
284次组卷
|
4卷引用:辽宁省锦州市黑山县黑山中学2020届高三6月模拟考试数学(文)试题
名校
8 . 已知函数
.
(1)讨论
的单调区间与极值;
(2)已知函数
的图象与直线
相交于
,
两点(
),证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b5f0d49de086437aaecdbe5b69819.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d540d80761f9bb830d44b6992b626ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba1e1ca5040060dde64c667ec432a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f05eb4c4c6f9e6a702735bc0b5122d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574824d85f44d42246529ac135c0391c.png)
您最近一年使用:0次
2020-07-07更新
|
3240次组卷
|
5卷引用:辽宁省沈阳市2020届高三年级教学质量监测(三)数学(文科)试题
2012·湖北襄阳·一模
名校
解题方法
9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548bff7a9a1c2248fbac6c4dc1b499a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c235ca725ade5c8b07943ac106a90fb3.png)
(1)若
为
的极值点,求实数
的值;
(2)若
在
上为增函数,求实数
的取值范围;
(3)当
时,方程
有实根,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548bff7a9a1c2248fbac6c4dc1b499a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c235ca725ade5c8b07943ac106a90fb3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3baa3392be365858498c37ff4d76e67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738f1cf869a4fb79402685e91aa9bc17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2020-07-04更新
|
574次组卷
|
13卷引用:2016届辽宁省沈阳市二中高三上学期期中理科数学试卷
2016届辽宁省沈阳市二中高三上学期期中理科数学试卷(已下线)2012届湖北省襄阳市高三3月调研考试数学理科试卷(已下线)2012届广西南宁二中高三3月模拟考试理科数学试卷(已下线)2014届广东省“十校”高三第一次联考理科数学试卷(已下线)2014届甘肃省兰州一中高考模拟三理科数学试卷2016届福建省上杭县一中高三12月月考文科数学试卷2017届湖南省湘潭市高三第三次高考模拟数学(理)试卷浙江省丽水四校联考2019-2020学年高三9月阶段性考试数学试题2020届湖南省岳阳市第一中学高三上学期第一次质量检测数学(理)试题浙江省宁波市余姚中学2019-2020学年高二下学期期中数学试题江苏省泰州市第二中学2020届高三下学期5月学情调研数学试题重庆市2021届高三上学期第二次预测性考试数学试题江西省萍乡市芦溪中学2023届高三上学期开学考数学(理)试题
名校
解题方法
10 . 设函数
,
(1)若
,
讨论函数
的单调性;
(2)若
,在定义域内存在
,使得
,求证:
;
(3)记
为
的反函数,当
时,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c7667b9c645e705b0af2a74b9afce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2883ccc2634ed2d7e1ef6c9ac531a56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766bdd7fc28a0408f6fef2abe1dbb434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e83a3ae4472144b9626a1a443bd1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946dccbf1011600189a1ccfa265f98eb.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a2a1822ac7392b61b2c0fffc1fbc05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad4130d5a47ee3194d6ea46743a7c5a.png)
您最近一年使用:0次