名校
1 . 已知函数
在区间
上的最大值为4,最小值为1,记为
.
(1)求实数
,
的值;
(2)若不等式
成立,求实数
的取值范围;
(3)对于任意满足
的自变量
,
,
,…,
,如果存在一个常数
,使得定义在区间
上的一个函数
,
恒成立,则称函数
为区间
上的有界变差函数,试判断函数
是否是区间
上的有界变差函数,若是,求出
的最小值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28748fcd2ade584e5813e4eb50772a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44284ff1ea50429a0610e13363be6080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45bb3e0ef24d93f30b9bf6a9315efa8b.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f9c3e96385640543f138bfb6685595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)对于任意满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c837fed4f0a9189a79c43e1a4f5e6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b00b650d68bd7be161a771ce1336e6d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2ec965488c7e1cea085463c7731285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
2 . 已知函数
是二次函数,不等式
的解集为
,且
在区间
上的最小值是4.
(1)求
的解析式;
(2)求
在
上的最大值
、最小值
的解析式;
(3)设
,若对任意
均成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2850764459f4cca23c9c21fe1d8879f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7077fd2d7d74478891bfc360dc249f9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e93815f534a9ba003799aef2a53a242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b36da3b4cc0a0cc408ef324b04c9d4.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e1a5283725107b93faef861eaed0d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bf285a274fbf2b738c9788c5d91258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-01-31更新
|
189次组卷
|
2卷引用:上海市闵行中学2017-2018学年高一上学期期中数学试题
名校
解题方法
3 . 某山村为响应习近平总书记提出的“绿水青山就是金山银山”的号召,积极进行生态文明建设,投资64万元新建一处农业生态园.建成投入运营后,第一年需支出各项费用11万元,以后每年支出费用增加2万元.从第一年起,每年收入都为36万元.设
表示前
年的纯利润总和(
前
年的总收入-前
年的总支出费用-投资额)
(1)求
的表达式,计算前多少年的纯利润总和最大,并求出最大值;
(2)计算前多少年的年平均纯利润最大,并求出最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e026ea1deb91944e0ae91bcf52d405f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
(2)计算前多少年的年平均纯利润最大,并求出最大值.
您最近一年使用:0次
2020-01-31更新
|
777次组卷
|
7卷引用:江苏省扬州市仪征市第二中学2020-2021学年高二上学期期中数学试题
江苏省扬州市仪征市第二中学2020-2021学年高二上学期期中数学试题山东省聊城市2019-2020学年高二上学期期末数学试题(已下线)第5章+函数概念与性质(基础过关)-2020-2021学年高一数学单元测试定心卷(苏教版2019必修第一册)山东省青岛市2019-2020学年高二上学期期末数学试题江西省南昌市第十中学2020-2021学年高一下学期第二次月考数学试题浙江省浙大附中玉泉校区2022-2023学年高二上学期期末数学试题山西省阳泉市第一中学2021-2022学年高二下学期期末数学试题
名校
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19572ace10e32cdbe1ed90915116077e.png)
(1)当
时,解关于
的不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ddc9d0ca950eeb3a037db15ba1447a0.png)
(2)对于给定的正数
,有一个最大的正数
,使得在整个区间
上,不等式
恒成立,求
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19572ace10e32cdbe1ed90915116077e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ddc9d0ca950eeb3a037db15ba1447a0.png)
(2)对于给定的正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a239d924a26dbc7f33052c63a20a327a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1ff2f77455fed362050d679abce5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbabb741f7e5ef0d5bf7e5ee1c1ac67e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a239d924a26dbc7f33052c63a20a327a.png)
您最近一年使用:0次
5 . 已知函数
,
取什么实数时,函数图象与
轴
(1)没有公共点?
(2)只有一个公共点?
(3)有两个不同的公共点?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81d95afc1989486debb7d8ac65a08459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)没有公共点?
(2)只有一个公共点?
(3)有两个不同的公共点?
您最近一年使用:0次
名校
6 . 已知
是定义在
上的函数,记
,
的最大值为
.若存在
,满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3572457f6eb45b5d49138da4cd0d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec65b538f7ba2d5f636623ee85955e2.png)
,则称一次函数
是
的“逼近函数”,此时的
称为
在
上的“逼近确界”.
(1)验证:
是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc04a40b5a7fd2504316a164190beeb.png)
的“逼近函数”;
(2)已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f906bab9959325ca0d2dd54b57786bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7a3dbf513ce40befb25a801e6cf7a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7316f2f1cf67a610e31adfa12ef50d6d.png)
.若
是
的“逼近函数”,求
的值;
(3)已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f906bab9959325ca0d2dd54b57786bb0.png)
的逼近确界为
,求证:对任意常数
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1291ecd1ed0c05219d47f05fb585bd52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90cd32efb968fbe9782f556ba6e5ae99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3b73875f5ded5e57738d7575f085b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3572457f6eb45b5d49138da4cd0d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec65b538f7ba2d5f636623ee85955e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfa3b19dbc87544ec8e57606cb067d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
(1)验证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4b0eba587d0af5c665a8f909df5104.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc04a40b5a7fd2504316a164190beeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbb01a7f5e9861aa185c6c63fcd58c0.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f906bab9959325ca0d2dd54b57786bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7a3dbf513ce40befb25a801e6cf7a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7316f2f1cf67a610e31adfa12ef50d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106e346ccfc716b38eba9e2404a5ea8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f906bab9959325ca0d2dd54b57786bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc868a2077000982bd4594d95cfc351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba58ee96c397a0e865e5ec333a664bb.png)
您最近一年使用:0次
2020-01-30更新
|
329次组卷
|
5卷引用:上海市南汇中学2024届高三上学期期中数学试题
上海市南汇中学2024届高三上学期期中数学试题2017届上海市浦东新区高考三模数学试题2017届上海市浦东新区高三下学期5月练习数学试题上海市川沙中学2021-2022学年高二下学期期末数学试题(已下线)上海高二下学期期末真题精选(压轴60题35个考点专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)
名校
7 . 已知函数
.
(1)若
的定义域和值域均是[1,a],求实数a的值;
(2)若
在[1,3]上有零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a86606245c50dd00e15cdb656852b9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2020-01-30更新
|
408次组卷
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2卷引用:黑龙江省部分重点高中2019-2020学年高一上学期期中联考数学试题
名校
8 . 已知实数x满足
且
.
(1)求实数x的取值范围;
(2)求
的最大值和最小值,并求此时x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115b8c0efc0355cd112f3a67a623cdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d4f3a2dbe4fa60edbbab879b40c421.png)
(1)求实数x的取值范围;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2020-01-30更新
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356次组卷
|
2卷引用:黑龙江省部分重点高中2019-2020学年高一上学期期中联考数学试题
16-17高一上·上海浦东新·期中
名校
9 . 已知函数
;
(1)若函数
在区间
上的最小值为
,求实数
的取值范围;
(2)是否存在整数
,
,使得关于
的不等式
的解集恰好为
,若存在,求出
,
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156591d93d97d52d3586779ebf4a7be9.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b41d43009a98c3c17f98931986e17c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)是否存在整数
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93f64f64d334d73b07e07526c5c864e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
10 . 解下列方程:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fdc2a86d45f5635188aa8a01bbbcd2.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fdc2a86d45f5635188aa8a01bbbcd2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245240f5d275ab9e45cdbad6591f96c8.png)
您最近一年使用:0次