1 . 设向量
,
,
.
(1)若
,
是钝角,求
;
(2)若
,求函数
的单调增区间和
图象的对称中心坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cccd7b346954551c0cb56ce3bfd5dbc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6a111aada6caee00b0e98eae61646a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa17085573d48ccf09042d5f0a5cb43.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66a50b58bd580bd20721c9e3e6751f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae9f908aabcd9d9c46a0ecdfd1d6c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2021-08-27更新
|
162次组卷
|
3卷引用:内蒙古鄂尔多斯市四旗2020-2021学年高二上学期期末联考理科数学试题
名校
解题方法
2 . 如图,现要在一块半径为
,圆心角为
的扇形纸板
上剪出一个平行四边形
,使点
在弧
上,点
在半径
上,点
在半径
上.设
,平行四边形
的面积为
.
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747866719010816/2768836622163968/STEM/ab703df6-0e80-4163-a29b-0ae22ca91dc0.png?resizew=228)
(1)求
关于
的函数关系式;
(2)求
的最大值及相应的
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447f989d11d8ea5a1ced8dfb6cc1997e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161ea3eaa2e28747507c1c0e4a7b39f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3670246f45e63fb0a2457378e8b14b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747866719010816/2768836622163968/STEM/ab703df6-0e80-4163-a29b-0ae22ca91dc0.png?resizew=228)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
3 . 已知函数
.
(1)求函数
的单调递增区间;
(2)若函数
,
且
,求函数
在区间
上的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab57580bcba7283656897b578e0479c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72475e499b839fe1f3836eeca4dfe8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f29c714a8bdbf2abab80b1de2d816017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918bfef941a5eee5e85674f00e94d225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
您最近一年使用:0次
2021-05-19更新
|
973次组卷
|
4卷引用:内蒙古鄂尔多斯市第一中学2020-2021学年高一下学期第三次月考数学(理)试题
内蒙古鄂尔多斯市第一中学2020-2021学年高一下学期第三次月考数学(理)试题浙江省金华市义乌市2021届高三下学期适应性考试数学试题(已下线)专题5.8—三角恒等变换2-2022届高三数学一轮复习精讲精练安徽省安庆市桐城中学2023-2024学年高一下学期开学检测数学试题
名校
解题方法
4 . 已知函数f(x)=
,
.
(1)求函数f(x)的最小正周期及单调递减区间;
(2)若x
,求函数f(x)的的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec610bb171ae271d2a0ff267a574e154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求函数f(x)的最小正周期及单调递减区间;
(2)若x
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8736b8e9e98506edafa948d5cb7cd16.png)
您最近一年使用:0次
2021-09-10更新
|
375次组卷
|
4卷引用:内蒙古鄂尔多斯市第一中学2021-2022学年高二上学期第一次月考数学(理)试题
内蒙古鄂尔多斯市第一中学2021-2022学年高二上学期第一次月考数学(理)试题浙江省金华市曙光学校2020-2021学年高二下学期第一次阶段考试数学试题浙江省“山水联盟”2019-2020学年高三下学期返校考试数学试题(已下线)专题11 三角函数与解三角形综合(解答题)-冲刺2020高考跳出题海之高三数学模拟试题精中选萃(浙江专版)