已知圆
均过点
,且其半径之积
.若x轴是
的公切线,且
的另一条公切线l通过原点,则直线l的斜率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad42625f296d2a4b65180e2f7b776beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b2f087bc18100211f3ee43700453ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
16-17高三·北京·强基计划 查看更多[2]
更新时间:2023-08-21 09:41:58
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相似题推荐
单选题
|
较难
(0.4)
【推荐1】已知圆
,圆
,两圆的内公切线交于点
,外公切线交于点
,若
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9edf67c2e68042e26faefd72455386c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65bc1941e1c6d9f3834159f4b874c9cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a5791566d9446c8b2f44d6987e262d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】已知圆
,
,过圆
上一点P作圆
的两条切线,切点分别是E、F,则
的最小值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49dbd7f3e1fb5c88e1f3cf6be0c1c881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e085612cfbab28ea6c4b952495cefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ea92f99696462f29a643eb05f21cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.6 | B.5 | C.4 | D.3 |
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【推荐1】在坐标平面内,与点
距离为2,且与点
距离为1的直线共有条
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9b4081755dd5d63529f95fab4ca51a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670f050f37e6c929cba66bd41c3de4d3.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次