1 . 已知
,
,则
的最大值和最小值分别为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1136dbc0749a60f8cb949d481fd0cf7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bae0205e80ff2f6a8d2fe7a78d507ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2021-11-09更新
|
1236次组卷
|
3卷引用:湘教版(2019) 必修第一册 突围者 第5章 第三节 课时2 正弦函数、余弦函数的性质
名校
2 . 已知
是正项等比数列
的前
项和,
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a9c6011a4c3a0d5d12c04f812a4fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f439473dda7b2a5cc5295a7cf337850f.png)
您最近一年使用:0次
2023-08-02更新
|
429次组卷
|
4卷引用:广西示范性高中2022-2023学年高二下学期6月联合调研测试数学试题
名校
解题方法
3 . 已知函数
,函数
,
,对于任意
,总存在
,使得
成立,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc08518c6c826d2f28a4810eaf941021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9679bebbf12262a95e313784b97b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fa5cb4b09c5042827e90f5b2071665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba145810f7d05dbe04bf9bcb37abec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fe7333442e1e490b82570b2c526ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-11-13更新
|
1286次组卷
|
4卷引用:广东省广州市仲元中学2020-2021学年高一上学期期末数学试题
名校
4 . 南朝乐府民歌《子夜四时歌》之夏歌曰:“叠扇放床上,企想远风来;轻袖佛华妆,窈窕登高台”,中国传统折扇有着极其深厚的文化底蕴.如图所示,展开的折扇可看作是从一个扇形,某艺术节展示活动中,小李同学打算利用一条2米长的紫色丝带围成一个扇形展示框,则该展示框的面积最大值为____________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/a7e00508-cd5a-4859-90b6-6d2f7c5a2f41.png?resizew=146)
您最近一年使用:0次
名校
解题方法
5 . 在平面四边形
中(如图所示),
,若点
为边
上的动点,则
的最小值为_____________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf984705b487b877b46b945670eff30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5b69055b3cc8db3c020ab3654e5ee5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/16/b9756b5d-e7b2-4cb5-9cd3-f4ea25c9e7a4.png?resizew=134)
您最近一年使用:0次
2023-05-11更新
|
423次组卷
|
2卷引用:广东省江门市新会陈经纶中学2022-2023学年高一下学期期中数学试题
6 . 对于定义域为D的函数
,如果存在区间
,同时满足:①
在
内是单调函数;②当定义域是
时,
的值域也是
,则称
是该函数的“优美区间”.若函数
有“优美区间”
,当a变化时,则
的最大值为_____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e1c4e16e2ff56b5eb232e64fb16f63.png)
![](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/db527571cfd256c515424c6f9d114284.png)
![](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/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1339ece26e6f67b01cc81dea4ab5196a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
您最近一年使用:0次
名校
解题方法
7 . 设实数x,y满足
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b42c41dffe858f941da7f362fb68fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796fbb54ff4888c251e3ed55c8148fdb.png)
您最近一年使用:0次
2023-02-14更新
|
347次组卷
|
4卷引用:陕西省铜川市王益中学2023届高三下学期一模理科数学试题
2022高一·全国·专题练习
解题方法
8 . 二次函数
的对称轴为
轴,经过
、
两点,并且当
时,
时,
恒成立,则实数
的取值范围是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2c84e7b41a841a230ed5f8a42309aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6343069217cd6d8dd32446da428dae46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76acf4494067f57856da8e1ae00f17fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac742e739f2adfc6b00b8efa9e9d1343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
9 . 在平面直角坐标系
中,圆
为圆
上的动点,
为
中点,若点
在以
为直径的圆
上,则
到
轴距离的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674e876044ebc9fa57148fade94b2438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2020高三·全国·专题练习
解题方法
10 . 函数
的值域为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96283383edbce2e5731389b0b494fd57.png)
您最近一年使用:0次