名校
解题方法
1 . 设
三个内角
所对的变分别为
已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ed69fd6fcf528cc3cad9121559cfcc.png)
(1)求角
的大小;
(2)如图,在
的一个外角
内取一点
,使得
,过点
分别作直线
的垂线
,垂足分别为
.设
,求
的最大值及此时
的取值.
![](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/e5ed69fd6fcf528cc3cad9121559cfcc.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2899e607479d8d1c47d954ae9ebb7144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713624718756f78a30160af6591494a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aabac9984f5bd677aa49cf567e26ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599d9613acab4f4c529f449bbc207bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bb1548ddc0e5536a35b1bd78c4e7cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/bc62c4cd-7671-48f8-b560-dcf9e358fe4a.png?resizew=220)
您最近一年使用:0次
2018-08-10更新
|
874次组卷
|
3卷引用:湖北省恩施州巴东县第一高级中学2023-2024学年高二上学期末数学试题