解题方法
1 . 如图,P是直线
上一动点,以P为圆心的圆Γ经定点B(1,0),直线l是圆Γ在点B处的切线,过
作圆Γ的两条切线分别与l交于E,F两点.
(1) 求证:
为定值
(2)设直线l交直线
于点Q,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0038fefa3631a3b3064033ae6606366b.png)
![](https://img.xkw.com/dksih/QBM/2017/8/8/1747568471793664/1747951295881216/STEM/e791b8c1073148c7978576ae0766b6e5.png?resizew=227)
(1) 求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2843730ec1403be97a27545eca962fe6.png)
(2)设直线l交直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e49a7a701fbc3274234126cd30b127.png)
您最近一年使用:0次
2017-08-08更新
|
1159次组卷
|
2卷引用:安徽省定远县育才学校2017-2018学年高二下学期开学调研考试数学(理)试题