名校
1 . 在平面直角坐标系xOy中,抛物线
的焦点为F.设M是抛物线上的动点,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57138270953b36b6cbae4a2a072b8aed.png)
您最近一年使用:0次
名校
2 . 若关于x的方程
恰有4个不同的正根,则实数a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52142aa079bca406f751814c7da1806.png)
您最近一年使用:0次
名校
3 . 已知定义在R上的函数
是奇函数,
是偶函数,且
.
(1)求出函数
与
的解析式;
(2)若函数
在区间
存在零点,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd6c5d5713df54f8c8955eb5ddaf2c3.png)
(1)求出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1037c5d597fde7c4f3ae59c487c6de8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094cba781181aeb90752170e9ba6c94.png)
您最近一年使用:0次
2020-03-26更新
|
381次组卷
|
2卷引用:2020届江苏省南京一中、连云港赣榆中学高三上学期10月联考数学试题
解题方法
4 . 已知
是定义在R上的函数,对于任意
,
,
恒成立,且当
时,
,若
,
对任意
恒成立,则实数a的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8542fbe02e78cf3948c9abea9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f38f2297dbbff0a5e1570cf072282b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab0c2a1f190cd8d5f942a5b779fac1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4865b336167f748ec3bd67d703b1506c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab87accf1942ab80def96d12ef173163.png)
您最近一年使用:0次
名校
5 . 已知函数
有两个不同的零点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a52993b81f45b8061f19b5cec25d37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
6 . 如图,某市建有贯穿东西和南北的两条垂直公路
,
,在它们交叉路口点
处的东北方向建有一个荷花池,荷花池的外围是一条环形公路,荷花池中的固定观景台
位于两条垂直公路的角平分线
上,
与环形公路的交点记作
.游客游览荷花池时,需沿公路
先到达环形公路
处.为了分流游客,方便游客游览荷花池,计划从靠近公路
,
的环形公路上选
,
两处(
,
关于直线
对称)修建直达观景台
的玻璃栈道
,
.以
,
所在的直线为
,
轴建立平面直角坐标系
,靠近公路
,
的环形公路可用曲线
近似表示,曲线
符合函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/6dada63c-d9e0-422a-9af9-e9f0179900fe.png?resizew=170)
(1)若
百米,点
到
的垂直距离为1百米,求玻璃栈道
的总长度;
(2)若要使得玻璃栈道
的总长度最小为
百米,求观景台
的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](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/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.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/95df8aa0fabb9ff4594fbda756fe40e8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/6dada63c-d9e0-422a-9af9-e9f0179900fe.png?resizew=170)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcd4286cd044729071fb7ff9117a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac656ec89607f52b5353dba400fab6.png)
(2)若要使得玻璃栈道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac656ec89607f52b5353dba400fab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2793aa39b517d1a5e7ca2d8243710c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2020-03-09更新
|
393次组卷
|
4卷引用:2020届江苏省苏州市张家港市高三阶段性调研测试数学试题
7 . 已知函数
,
.
(1)求函数
在
上的最小值;
(2)求函数
在
上的最小值;
(3)求函数
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9789ed3465a1be1cf4d08d10c0d67aac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5784c113f26ba3fb9fa19bc1218cda4.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a876d70607e661282d61705b36ae40df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
您最近一年使用:0次
名校
8 . 已知函数
.
(1)求函数
的定义域和值域;
(2)设
(a为实数),求
在
时的最大值
;
(3)对(2)中
,若
对
所有的实数a及
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1653dbf391bf5cb46e64535738eea7a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c85ceef9c1d78cce15b325b3d19a508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
(3)对(2)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35477204f75390d119f98e16a4ab258f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8326eccb6fccce4cad9ff889bf0febbe.png)
您最近一年使用:0次
2020-10-28更新
|
1273次组卷
|
10卷引用:江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题
江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题江苏省如东高级中学2017-2018学年高一上学期阶段测试(二)数学试题上海市徐汇区2018—2019学年高一上学期期末学习能力诊断数学试题人教A版(2019) 必修第一册 突围者 第三章 3.2课时2 最大(小)值(已下线)专题18函数的定义域和值域- 2020年初升高数学无忧衔接(沪教版)湖南省邵阳市邵东县创新实验学校2020-2021学年高三上学期第一次月考数学试题(已下线)专题17+函数的基本性质(3)-2020-2021学年新教材高一数学秋季辅导讲义(沪教2020)(已下线)第01讲 函数的概念和图象(教师版)-【帮课堂】2021-2022学年高一数学同步精品讲义(苏教版2019必修第一册)(已下线)第12讲 函数(5大考点)-2022-2023学年高一数学考试满分全攻略(沪教版2020必修一)(已下线)专题06 函数的概念及其表示压轴题-【常考压轴题】
名校
解题方法
9 . 已知函数
.
(1)证明:
为偶函数;
(2)设
,若对任意的
,
恒成立,求实数k的取值范围.
(3)是否存在正实数
,使得
在区间
上的值域刚好是
,若存在,请写在所有满足条件的区间;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e3cfee6429b0650fcf6fc912d3bfbd.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac8231f17bd024ba64e85bd886f40b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f861363c40e30b475d07db9197972666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
(3)是否存在正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819871784cadce4632b13f758f77c691.png)
您最近一年使用:0次
名校
10 . 设函数
,若互不相同的实数
满足
,则
的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65b53c6e5e767fa06c80959e100bf85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637110325fc5bcb6337762aecf53d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e849fb700652f55ee94ee273107596.png)
您最近一年使用:0次