1 . 选修4-1:几何证明选讲
如图,四边形
内接于
,过点
作
的切线
,交
的延长线于
,
.
![](https://img.xkw.com/dksih/QBM/2016/9/9/1573010931654656/1573010937626624/STEM/3b8bf95bdc44496bb113aba6935c01a3.png)
(1)若
是
的直径,求
的大小 ;
(2)若
,求证:
.
如图,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880be04496b4e06b1c47d433d880b442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880be04496b4e06b1c47d433d880b442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fee0f0b284f0e5df672e09bf97a366.png)
![](https://img.xkw.com/dksih/QBM/2016/9/9/1573010931654656/1573010937626624/STEM/3b8bf95bdc44496bb113aba6935c01a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880be04496b4e06b1c47d433d880b442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/001fb1746a5c0d71c5d645e024fa8b3e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fee0f0b284f0e5df672e09bf97a366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de2c2a48dbe6e61f4c3d63fa5ac8d8b.png)
您最近一年使用:0次
2016-12-04更新
|
106次组卷
|
2卷引用:2016届内蒙古赤峰市高三4月统一能力测试数学(理)试卷