名校
1 . 定理(三角不等式),对于任意的
、
,恒有
.定义:已知
且
,对于有序数组
、
、
、
,称
为有序数组
、
、
、
的波动距离,记作
,即
,请根据上述俼息解决以下几个问题:
(1)求函数
的最小值,并指出函数取到最小值时
的取值范围;
(2)①求有序数组
、
、
、
的波动距离
;
②求证:若
、
、
、
且
,则
;题(注:该命题无需证明,需要时可直接使用).设两两不相等的四个实数
、
、
、
,求有序数组
、
、
、
的波动距离
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49506c61cf5c61605f1cf90a440348cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4613271f782a90ab580131d09d03d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec475a4298eab592d6589aab8915276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef141315bf951ddcd300f0743a16897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7cfd590897d8d908066c781c63a812d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3b887215cd1514d3e2e79063729a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)①求有序数组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7330e52932883877de428cfe91962b96.png)
②求证:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a876ecb804eb0553c246e5fcc40b708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effb89a4bffb74028211ecfe671b79d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46944e1594eec140cacd7b454342561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc0ce632fa217dc77f6c92afd311815.png)
您最近一年使用:0次
2022-08-22更新
|
417次组卷
|
7卷引用:专题02 等式与不等式(练习)-2
(已下线)专题02 等式与不等式(练习)-2上海市高桥中学2022-2023学年高一上学期期中数学试题(已下线)期中模拟预测卷03(测试范围:前三章)-2022-2023学年高一数学上学期期中期末考点大串讲(沪教版2020必修第一册)(已下线)上海高一上学期期中【压轴42题专练】(2)上海市控江中学2021-2022学年高一上学期期中数学试题(已下线)第二章 等式与不等式(压轴题专练)-速记·巧练(沪教版2020必修第一册)上海市吴淞中学2023-2024学年高一上学期期中数学试题
解题方法
2 . 已知函数
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
时,求
的单调区间;
(2)若
与
在
上的单调区间和单调性相同,试探究方程
的实根的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85218920bb3682c9f8a5c38f05d3c489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ff40dec77111a73a00cf084883a293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a215072a06d124b82e3aae30a5e34fb5.png)
您最近一年使用:0次
3 . 设正整数
,且满足
,
={98,183,37,122,14,124,65,y},对于给定的x,y,记
为
的最小值,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee5f4c22851841800db924b442b8152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58004e1a88a606c01d1725fe53d8163d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed7768749d799ed7f2a99dcff0cddcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09ce783d4a9b49285ae00d72ea5dd63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0b7b6798e3f3a96d832c224aa191f9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 对于函数
及正实数
,若存在
,对任意的
,
恒成立,则称函数
具有性质
.
(1)判断函数
是否具有性质
?并说明理由;
(2)已知函数
具有性质
,求实数
的取值范围;
(3)如果存在唯一的一对实数
与
,使函数
具有性质
,求正实数
的取值情况.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cf3765e5650555113994da8771e3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b80225b1c0e43c14d90ee75f50f9817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5cc7b3d2601cd882e374f38df5e254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326452bda2f207bbb661b4e805fd7f59.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a3b559d22b7ab01ecd87e99a5fdb01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9beb2fb34710397280c318e5392e19f.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20be954eb33ebab545112d07e04c794b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714efc5adfb2e2910fb190a299215bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)如果存在唯一的一对实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb2c1e778d749382c00d0cca83cfb71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326452bda2f207bbb661b4e805fd7f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
您最近一年使用:0次
2022-01-24更新
|
333次组卷
|
2卷引用:上海市闵行区2021-2022学年高一上学期期末数学试题
5 . 已知
,
,
为实数.
(1)求证:
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e28ecd21f85906f74085dcdd0a1cb5e.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7211022a2e5278adf0504e0f35cdb6d3.png)
您最近一年使用:0次
2021-11-21更新
|
228次组卷
|
5卷引用:考点58 不等式选讲-备战2022年高考数学典型试题解读与变式
(已下线)考点58 不等式选讲-备战2022年高考数学典型试题解读与变式河南省重点中学2021-2022学年高三上学期模拟调研(一)数学(文)试题河南省重点中学2021-2022学年高三上学期模拟调研(一)数学(理)试题(已下线)河南省名校2021-2022学年高三上学期尖子生11月调研考试数学(理)试题(已下线)2024年高考全国甲卷数学(理)真题平行卷(提升)
6 . 已知平面向量
,
,
满足
,
.若
,则
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595e58f64c5694b954da5a0eed107a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7753ff49e30ff625b37cc2e7590a0cb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1e43c20b707ef973fa82222e220e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3479bb706e42358008f712fd488c02c5.png)
您最近一年使用:0次
7 . 已知定义在R上的函数
的图象是一条连续不断的曲线,且在任意区间上
不是常值函数.设
,其中分点
将区间
分成
个小区间
,记
称为
关于区间
的n阶划分的“落差总和”.当
取得最大值且n取得最小值
时,称
存在“最佳划分”
.
(1)已知
,求
的最大值
(不必论证);
(2)已知
,求证:
在区间
上存在“最佳划分”
的充要条件是
在区间
上单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46bba6c64cf0ba9cf41d820c1f4a6739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0402967f2c4db0692f713303c06f93f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098afe75dd67aa4c2d1f0b6616c4c1ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5810d8724bf005247c3a75a756468c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e8b12a48ff6d675c67b843132522bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce5d760f3a7148a9cd0413eb3867b4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7e9f86738335a22298559db41037a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8653b2a0f72f531e24ea1368f91b20.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ef85125cb753352d02781b621ac3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514d3e0c59cbfec0a877ec5d13069cb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb44db1dc864ff4901be1e10da79747.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6678ae99d8fe18fe615993bf3ad70c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4b6c4fb400d835efe1f10e67d005ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
您最近一年使用:0次
解题方法
8 . 函数
,其中
是定义在
上的周期函数,
,
为常数
(1)
,讨论
的奇偶性,并说明理由;
(2)求证:“
为奇函数“的一个必要非充分条件是”
的图象有异于原点的对称中心
”
(3)
,
在
上的最大值为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dece7fe8d8461d881f1e5f9ec3041c5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfbde60ed74606be7a9f5e4bb38aee3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588bbf780d49cf4d29802c2e4126f112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求证:“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8f1285c681b78d07c384040e92ef52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df896f6230505b59a0488129d57300c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
9 . 若不等式
对于
,
上恒成立,则
的最大值是__ ,若
对于
,
上恒成立,则
的最大值是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6cee1ba235db8c1ce76c3eb55bbfe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/837c6667703301c00e24bf589fa36c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad04b9df1032e5d2953e45d238da08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a343d47de28db5748a6f0a8c6f4715d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6cee1ba235db8c1ce76c3eb55bbfe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8794392226135e30dd0bbc84e253bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad04b9df1032e5d2953e45d238da08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c80587db89817c17a46bd0ebd93b87a.png)
您最近一年使用:0次
2020-09-25更新
|
543次组卷
|
3卷引用:专题04 函数的基本性质-2022年高考数学一轮复习小题多维练(新高考版)
19-20高三下·浙江·阶段练习
10 . 已知函数
,对一切
,都有
,则当
时,
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d7ed6f4b0e08cd887d2fdc2a5e37e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366839b25310cb3168d411b1d5f73b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa16b780156e18f12baa2b8ee0f9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次