10-11高一下·广东汕头·期中
名校
解题方法
1 . 如图,在平面直角坐标系
中,
,
,
,
,设
的外接圆圆心为
.
![](https://img.xkw.com/dksih/QBM/2011/5/6/1570183758569472/1570183763877888/STEM/1989245a-9518-4a5e-980f-2951e9e2e006.png?resizew=263)
(1)若
与直线
相切,求实数
的值;
(2)设点
在
上,使
的面积等于12的点
有且只有三个,试问这样的
是否存在?若存在求出
的标准方程;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ef7fd7ebb8803e2dd8bda62998b517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8f5c10cc7374be92db4463d64dcbca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f176ba3f0aed251a0c971ec788d11eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bbb2a23bb28d443062ae3e1a30b1be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2011/5/6/1570183758569472/1570183763877888/STEM/1989245a-9518-4a5e-980f-2951e9e2e006.png?resizew=263)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5ab74296abcbcf994c02b5834cd699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5ab74296abcbcf994c02b5834cd699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc00e548637370b129076f633aae654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5ab74296abcbcf994c02b5834cd699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5ab74296abcbcf994c02b5834cd699.png)
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2016-11-30更新
|
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7卷引用:江苏省徐州市第三十六中学2021-2022学年高二上学期10月第一次月考数学试题
江苏省徐州市第三十六中学2021-2022学年高二上学期10月第一次月考数学试题(已下线)【南昌新东方】江西省南昌市南昌县莲塘一中2020-2021学年高二上学期10月第一次月考数学(理)试题(已下线)2010-2011年广东省汕头市金山中学高一下学期期中考试数学(已下线)2011-2012学年湖南省华容县高一第一学期期末考试数学试卷2015-2016学年福建省福州八中高一上学期期末数学试卷2015-2016学年福建省福州八中高一上学期期末考试数学试卷安徽省淮北师范大学附属实验中学2018-2019学年高一下学期第一次月考数学试题
11-12高二上·江苏扬州·期末
名校
2 . 如图,直角三角形
的顶点坐标
,直角顶点
,顶点
在
轴上,点
为线段
的中点.
(1)求
边所在直线方程;
(2)
为直角三角形
外接圆的圆心,求圆
的方程;
(3)直线
过点
且倾斜角为
,求该直线被圆
截得的弦长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c600ceab3916c24b15f24dca76444e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2011/2/25/1570012972883968/1570012978085888/STEM/248f784417e444ee98419055d931ca72.png?resizew=199)
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