已知两圆
和
相切,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3683865e5d5e96ce0e75bf90fb331db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
18-19高一下·内蒙古·期中 查看更多[3]
内蒙古集宁一中(西校区)2018-2019学年高一下学期期中考试数学(文)试题(已下线)第二章 平面解析几何 2.3 圆及其方程 2.3.4 圆与圆的位置关系人教B版(2019)选择性必修第一册课本习题2.3.4 圆与圆的位置关系
更新时间:2019-05-28 19:51:48
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【知识点】 由圆的位置关系确定参数或范围
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知圆
:
,直线
,点
在直线
上.
(1)若点
的横坐标为2,求过点
的圆
的切线方程.
(2)已知圆
的半径为2,求圆
与圆
的公共弦
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b2f276a902f56910af2bd26df13789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcf431fad1fd535fc09b3a9895d89d4.png)
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解答题-证明题
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适中
(0.65)
解题方法
【推荐2】圆
和圆
恰有三条公切线,若
,
,且
.
(1)求证:
;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4f0e27b178b328c2e632ee9f60b98d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecd659952d5d31061560290978e4afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eae9ba258299eb489b490594397e23c.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e6764c2fbaf6f7e9fc0b6e22a59b8.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0687b9f2612100122ef9e2f4a85bce.png)
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