1 . 设
,函数
满足
对任意
都成立,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca90bfed16bf3cefccc39a83396acfc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dad0497a5e0a998a5c2650af1b87f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de899a3d04107b388b32b77d3f0837b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec459a094b25a3964b3b43f5ec71a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187bb43ef473e2b684b54db4244f2bb9.png)
您最近一年使用:0次
解题方法
2 . 已知函数
,且对一切
,都有
.
(1)将
分别表示成关于
的函数,并求出
的取值范围;
(2)对于给定的
,求
在区间
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad9a11b81b7a8643005608eacc7f9d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7df44f0187020c616149a2528a9e0df.png)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a475fec8ded321e10a6697319fb975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对于给定的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c737df907946dd7ebcc685f1aa432c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa0031624ea9a7189df816a94739f9f.png)
您最近一年使用:0次
名校
解题方法
3 . 已知命题
:对任意的正数
,有
,命题
:不存在实数
,使
.若命题
都为假命题,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a8452bc024c6e6765ea8c06a0c8b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7c33fdea0b2d9f5e961e5b42dfe08f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-06-08更新
|
382次组卷
|
3卷引用:安徽省十校联盟第三届(2023年)高二解题能力竞赛数学试卷
安徽省十校联盟第三届(2023年)高二解题能力竞赛数学试卷宁夏吴忠市盐池中学2024届高三第一次月考试数学(理)试题(已下线)专题2 函数的性质综合应用【练】 模块3 变量关系篇(函数)高三清北学霸150分晋级必备
4 . 已知函数
,
(
),若对任意的
,总存在
,使得
,则实数
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f410890a33f9fa57a90abb2cd2eb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b3a5b4f2b7279a7aa94f8ec12b3f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0cdf79ec49d52434473ee082eefc86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-14更新
|
105次组卷
|
2卷引用:第十二届高二试题(B卷) -“枫叶新希望杯”全国数学大赛真题解析(高中版)
5 . 已知
,
(1)若函数
与
在
时有相同的值域,求
的取值范围;
(2)若方程
在
上有两个不同的根
,求
的取值范围,并证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e14c2f347403fb0f36d1549d10ab9f4.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1d358875baefff9736f2f31c2e28e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8b0843577a84645d1887c7136e9305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad80c4ba8c593c5edfb167ae4a5f50f5.png)
您最近一年使用:0次
6 . 如图,四边形
是平行四边形,
,
,
,动直线
由
轴起向右平移,分别交
两边于不同两点
、
.
和点
的坐标,写出用
表示
的面积
的函数解析式
;
(2)当
为何值时,
有最大值?并求出此时的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab158dd9e96abcae0f115f54fa66c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23aec8c7c837d9734958bde5fea94a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9488d4fb791e9274b2867a97319b50b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00e0ca93b81029af5c4cd3bbd0314ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7b16d65f1b2b8bea8cf4a83fde925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d58b0fe0c727559b221753e676f14f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b096e36a68bb4f953f4f2d507af022.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b096e36a68bb4f953f4f2d507af022.png)
您最近一年使用:0次
解题方法
7 . 设平面内的两个向量
与
互相垂直,且
,
,又
与
(
)是两个不同为零的实数.若向量
与
互相垂直,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29276b43a2950ed71f0f9629a35dfa74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404067afb19bd74f447a6c0c832af1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c81b29ac8a01886b25dcef55c5f6877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d46b47448e0088c9fae4c5cfc9e29e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41265ca80d09b341d9e51037e2f57d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,设抛物线
的准线
与
轴交于椭圆
的右焦点
,
为椭圆
的左焦点,椭圆的利息率为
,抛物线
与椭圆
交于
轴上方一点
,连接
并延长其交抛物线
于点
,
为抛物线
上一动点,且在
,
之间移动.
取最小值时,求
的值;
(2)若
的边长恰好是三个连续的自然数,当
的面积取最大值时,求面积最大值及此时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0cff3d1740686643a440fafa4ce30d2.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/de58d613691466a4626296f6358311b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe3862e9c46c3045486dec7b53b7749b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a9dabb53dc826019fc8b6ae6d940c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
您最近一年使用:0次
2020-04-24更新
|
152次组卷
|
11卷引用:第十四届高二试题(B卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
第十四届高二试题(B卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)【全国百强校】四川省成都市外国语学校2018-2019学年高二12月月考数学(理)试题四川省成都市第七中学2017届高三三诊模拟数学(理)试题河北省衡水中学2018届高三第十六次模拟考试数学(理)试题河北省衡水中学2018届高三十六模理科数学试题2019年湖南省衡阳市雁峰区第八中学高三模拟检测数学(文)试题2020届全国100所名校高考模拟金典卷高三文科数学(十二)试题湖南湖北四校2019-2020学年高三下学期4月学情调研联考理科数学试题湖南湖北四校2019-2020学年高三下学期4月学情调研联考文科数学试题(已下线)2019年湖南省衡阳市第八中学高三模拟(零模)数学(理)试题2019年湖南省衡阳市第八中学高三上学期模拟检测数学(理)试题
名校
9 . 已知
,则函数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c4e8f9191c8d2a7d9642dee4005361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a97fc0a20640c93960cda1db085c49.png)
A.3 | B.6 | C.13 | D.22 |
您最近一年使用:0次
2016-11-30更新
|
844次组卷
|
6卷引用:2011年辽宁省瓦房店市五校高二上学期竞赛数学理卷