1 . 点P(5a+1,12a)在圆(x-1)2+y2=1的内部,则a的取值范围是 ( )
A.(-1,1) | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2017-12-10更新
|
748次组卷
|
2卷引用:人教A版高中数学必修二综合学业质量标准检测2
名校
2 . 已知圆
和圆
都经过点
,则同时经过点
和点
的直线方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167269276a9950153a4cb971b32eb2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407785467b511dfb9b42b585e6464394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f80de5f759c5121dc99db7db01ac21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c98d85beeaf01d0822c5269004a240.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-04-29更新
|
231次组卷
|
2卷引用:安徽省滁州市民办重点中学2019-2020年高二上学期第一次联考数学(理)试题
3 . 已知命题
,
恒成立;命题q:点
在圆
的内部.若命题“
”为假命题,“
”也为假命题,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bea9702708f8463975c94119fa50f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed736c0decc93f86d194dce040f21bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0974fa978e736f42366798a8970d1fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb09e67db6ca9d52c881dcf279ea58c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 动直线
:
过定点
,动直线
:
过定点
,若动直线
与
交于点
(异于点
,
),且
,则满足题意的
点的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f929c680511323f4c225d57f11f9f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc6c2a0b735cfc98fdad07f56e5b9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](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/0dbc6d62799aff09f6ecf9fc3e19d363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2020-01-14更新
|
234次组卷
|
2卷引用:四省八校2019-2020学年高三第三次教学质量检测考试数学文试题
名校
5 . 若过点
可作圆
的切线有两条,则有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933b9291f9da0630d78e096faead4e19.png)
A.![]() | B.![]() ![]() |
C.![]() | D.上述均不对 |
您最近一年使用:0次
解题方法
6 . 如图,斜
满足
,
,
,其中
表示a,b中较大的数(
时定义
).线段AC的中垂线上有一点D,过点D作
于点E,满足
,则点D到
外接圆上一点的距离最大值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/04a5467d-d90f-4293-8f2c-bcde9de73ada.png?resizew=256)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb053ca68ea5ae9b516c9dcb424ded6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/236f52e04ddbd7253f44b97c4756ef9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06efb622cccec4181e74e3fb8755f617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff905514bba847944e2a79fae2aef1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669fefb0233497e60c95bb06105085b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ae1cb5bb85212a252521a365c60fff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/04a5467d-d90f-4293-8f2c-bcde9de73ada.png?resizew=256)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
2020-05-04更新
|
204次组卷
|
2卷引用:广东省广州、深圳市学调联盟2019-2020学年高三下学期第二次调研数学(文)试题
7 . 过点(1,-3)总可以作两条直线与圆x2+y2-2x+2ky-8+2k2=0相切,则实数k的取值范围是( )
A.(3,6) | B.(-3,0) | C.(-3,0)∪(3,6) | D.(-3,0)∪(6,+∞) |
您最近一年使用:0次
名校
8 . 若无论实数
取何值时,直线
与圆
都相交,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6cdafa6b648336f2381fe8807fb931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8f816b20f385fb29ab7a3985225fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-12-07更新
|
817次组卷
|
2卷引用:四川省(大教育联盟)邻水实验学校2018届高三上学期第三次月考数学(文)试题
9 . 已知圆
经过原点,则实数
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbb44032c1144bae14b493fe9659ffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-01-19更新
|
487次组卷
|
2卷引用:北京市海淀区2017-2018学年第一学期高二期末文科数学试题
10 . 若原点
在圆
外,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/981afbc3cfad9209378a29a9d6802bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次