(1)已知直线
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158e9c77f8d23546cc436082b90a611f.png)
①若
,求实数
的值;
②若
,求实数
的值.
(2)已知平面上三个定点
,
,
.
①求点
到直线
的距离;
②求经过
、
、
三点的圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fac724161ededbc0e468816a1e73a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158e9c77f8d23546cc436082b90a611f.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1095c036b49c3327baaa2c3c7f746134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知平面上三个定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d03fa28c117649b0fdfe17eed7b583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2aab2b5d023db00c50ba74445e3458.png)
①求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
②求经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
20-21高一·全国·课后作业 查看更多[2]
(已下线)专题10+圆的方程(基础练)-2020-2021学年高一数学十分钟同步课堂练(人教版必修2)(已下线)2.4.2圆的一般方程(备作业)-【上好课】2021-2022学年高二数学同步备课系列(人教A版2019选择性必修第一册)
更新时间:2021-01-06 18:26:54
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【推荐1】已知直线
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027830fc47290062692964077ee481e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa791a760ad60193919b003880d3c40.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530d47be7e64bf20a652d544a7676965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c3635d7b12a171d7540ff880506310.png)
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【推荐3】已知直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fb96fbd6830e432b79448f38245a0b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1095c036b49c3327baaa2c3c7f746134.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a78489a7972a645bc015106e99b9f1.png)
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【推荐1】设常数m∈R,已知两条直线l1:mx+3y﹣1=0,l2:x+(m﹣2)y+1=0.
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(1)若l1与l2垂直,求m的值.
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【推荐2】求经过两条直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b469657bcb1ad2df255f52251d5e4149.png)
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【推荐1】在平面直角坐标系中,已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6ce39c72b38fa1a2b3275188b27689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6419152065edb8cabf887b65adb4a73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7089a4e568ed92b1230af589f4d47be.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐1】有一圆与直线
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【推荐2】(1)圆C的圆心在x轴上,且经过
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(2)圆C经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b543e2a42213542ddb4e1ec0674b89a.png)
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