1 . 直线
截圆
所得劣弧所对的圆心角为
,则r的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4958a3ab5b7a862f715b14822710b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1eeecbc0147648a0d48808eebda305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 两条直线
与
之间的距离是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47816cca5e9c541a3a59c4eebd99ba93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b0c747d1d8f633ac01f2b06a110d5e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-17更新
|
560次组卷
|
3卷引用:北京市房山区2023-2024学年高二上学期期末考试数学试卷
名校
解题方法
3 . 已知直线
,则
与
的交点坐标为_____________ ;若直线
不能围成三角形,写出一个符合要求的实数
的值________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23bbccdfe14e11a8996f8a2aaeb2328e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0c5ebbf2979ed2582483eb2a0fb32c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77fe8ec3ccc645db9a69d16a5589965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-17更新
|
175次组卷
|
2卷引用:北京市房山区2023-2024学年高二上学期期末考试数学试卷
名校
解题方法
4 . 已知
的三个顶点分别为
.
(1)设线段
的中点为
,求中线
所在直线的方程;
(2)求
边上的高线的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7578975220d8461991ba837f2acf22.png)
(1)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2024-01-17更新
|
317次组卷
|
2卷引用:北京市房山区2023-2024学年高二上学期期末考试数学试卷
5 . 设
为直线
上的动点,过点
作圆
:
的切线,则切线长的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0969f72126d6c236c5ae13c8888f11cd.png)
A.2 | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
2023-11-10更新
|
1042次组卷
|
3卷引用:北京市房山区2023-2024学年高二上学期期中考试数学试题
解题方法
6 . 已知圆
的圆心为点
,半径为2.
(1)写出圆
的标准方程;
(2)若直线
:
与圆
交于A,B两点,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29cde22fb58939fe5f42f01788f9170f.png)
(1)写出圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c6d3c99b7004603ba9ea9c341b8b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解题方法
7 . 已知三条直线
:
,
:
,
:
.
(1)求直线
,
的交点
的坐标;
(2)求过点
且与直线
平行的直线方程;
(3)求过点
且与直线
垂直的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512f4c29ff276b7f35052ad4cc255ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cad8e88b4df570f5d05255840bec51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5d58c8c55fc8dac4fcdf3221300316.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
(3)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
您最近一年使用:0次
8 . 圆
的圆心到直线
的距离是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/817a22bad38a5b632e4fce0d566dff8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6d2269875c74ebc793c8e4328c77f1.png)
您最近一年使用:0次
解题方法
9 . 已知
的边AC,AB上的高所在直线方程分别为
﹐顶点
.
(1)求顶点C的坐标;
(2)求BC边所在的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a062fd9dfa9b44a2be66cbc0536b5cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a0c87ac14dbb770c95d74d6e26073.png)
(1)求顶点C的坐标;
(2)求BC边所在的直线方程.
您最近一年使用:0次
10 . 已知半径为1的动圆
经过坐标原点,则圆心
到直线
的距离的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65168e663d1f3d2c24c45860247cdbf5.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2022-01-12更新
|
754次组卷
|
3卷引用:北京市房山区2021-2022学年高二上学期期末考试数学试题