已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35329d6503ba0a4a313fb02b9eecca5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c1250f7a30e99176418073b556deb6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f978654feff5f39593a8645eb44b90.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-03-08 09:18:58
|
相似题推荐
单选题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
为锐角,且
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71866ae86b9166e55828a3e2dad67a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐2】如图,已知直线
:
与单位圆相交于
,
两点,点
的坐标为
,设
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/c2346778-62ce-4928-bf3e-51fc3df437ca.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf1de13229082eb57904a6d889b4021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88450e5743b62b977d9b63fb23ec8398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe597ae042938aa86d00dcb45ca2fc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188c507555963fcb0c59e3fd6153a5bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2575f51345989f7c20177f9ff9e2d3fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/c2346778-62ce-4928-bf3e-51fc3df437ca.png?resizew=150)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ae35651dbd585201866a50db15a2a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a7e97db2d1207fb476f63573d8c1c7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】设α∈(0,π),
,则cos2α的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32780f5f23cd69199845776cbd53deba.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次