1 . 写出一个过点
,
的圆的标准方程_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2c84e7b41a841a230ed5f8a42309aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86022205a7487439dd8d0897cd3bf19.png)
您最近一年使用:0次
解题方法
2 . 已知圆
的圆心在直线
上且与
轴相切,请写出一个同时满足上述条件的圆的标准方程:__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
3 . 圆心为
且经过点
的圆的标准方程是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0b4afd16b79370532de44989d6c43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d23fc512ad69a2d5919ce690407704.png)
您最近一年使用:0次
4 . 已知圆的圆心为点
,一条直径的端点分别在
轴和
轴上,则该圆的标准方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147fb6512983bde4e00e033c3cfec59e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
解题方法
5 . 已知圆
,则圆
的半径为________ ;与圆
和圆
都相切的直线的方程为___________ .(只需写出一条直线的方程)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e51ee7fd129ed982014b7611edf6340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
您最近一年使用:0次
名校
解题方法
6 . 已知直线
:
与圆
:
、圆
:
相交于从左到右依次排列的四个不同点A,B,C,D,且满足
,则线段
的长为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13ecb65d13fbcf4a352cf8cefbc4182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3b3d51c6ede413050d959ca82be3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495021c7da1c77e6ed1d1dd30e0be7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
7 . 若直线
与圆
相切,则实数
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097a5a81c58288c759bfccdaef7ecdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba497ae7833c24d6b7e1323f66fd56f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
8 . 圆
的圆心到直线
的距离![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac76cccc78ea943676c28a3872e1c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c84f813b491ed9d5c65ada509f9a714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
您最近一年使用:0次
解题方法
9 . 圆
与圆
的公共弦长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30093078a92ef2c2d79ab24d82b7b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d216d413071e1a06f8fdec87602e85.png)
您最近一年使用:0次
名校
10 . 已知圆
,圆
,
,
分别是圆
,
上的动点,
为直线
上的动点,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/409d783ff2f646b2d31bf9fc414fbcb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a0e679483f4a3a55fe1575816f3354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ae4b8715ebb03970ccabe1abf439c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f618c20607afa7c345e81d33878148.png)
您最近一年使用:0次