已知
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd67e6e21b8bc25348655ffb1f68b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-05-03 20:29:54
|
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐2】在
中,角
的对边分别是
,若
,则
的形状为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995f48f2f1f57e707c867b6467033a28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.等腰三角形 | B.锐角三角形 |
C.直角三角形 | D.钝角三角形 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图所示,唐唐在背景墙上安装了一台视频监视器,
为唐唐坐在工位上时相当于眼睛位置的一点,
在背景墙上的水平投影点为
,过
作垂直于地面的直线
,分别交监视器上、下端于
、
两点,测得
,若
,则
为唐唐看监视器的视角. 唐唐通过调整工位使视角取得最大值,此时
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/bd7323a9-2fc8-4812-af17-5fcddd22792d.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b6210ecb19bbd109e82cfb43128401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687f7a348164b9fe4aa0eaf072d5a460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd927b4b5a7875528c1b54aa4bb8b2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/bd7323a9-2fc8-4812-af17-5fcddd22792d.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次