2024高一·上海·专题练习
1 . 若
,证明:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dda6feb152b17350c2d83b67582c033.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320af9f462428683ddb538bd892b4a7.png)
您最近一年使用:0次
2024高一·上海·专题练习
2 . 若
,证明:
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b495a7a39cd372ac8aa24132c4459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34cde6e6354d078b3e9a00f8ac624963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea0a48aeeafc595a6ddd9b9d23953fc.png)
您最近一年使用:0次
23-24高一下·上海·假期作业
3 . 若
,
,则
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc9444b5997b9e24c5d086269e17ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea222e0d37748f17620b0f4e93bb365c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.不能确定 |
您最近一年使用:0次
4 . (1)已知
,求:满足条件的角
的取值范围;
(2)已知
,求:满足条件的角
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6380ce78a2bea9f71a99eb39eca54fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd90fb42bc7a9e4e651d5b65e92c5b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次