设直线
:
与圆
:
交于
,
两点,当实数
变化时,
的最大面积为9,则此时
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf1a497effa07d54b1e315c422a785b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe1400ccbc41a83ca76df5e8c2bab58.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.4 | B.1或4 | C.1 | D.1或![]() |
20-21高二上·浙江·期中 查看更多[4]
浙江省浙东北联盟(ZDB)2020-2021学年高二上学期期中数学试题(已下线)【新东方】杭州新东方数学试卷405(已下线)【新东方】417内蒙古自治区赤峰市赤峰四中2021-2022学年高二上学期期中数学(理)试题
更新时间:2020-11-14 22:56:15
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】已知圆
与
轴切于原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7147590994a622c66e031a47260a6215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】若双曲线
的渐近线与圆
相切,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c7a723559fe888355eb4152fd7d1fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3e9625579171e279bc264b67ee549d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐1】圆
截直线
所得弦的长度为2,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d25e6b96227ffb3a8777195a8d49d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb4286544d255d3af650667a35fc7f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.![]() | C.4 | D.2 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】直线
被圆
截得的弦长为4,则
的最小值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8add2dd21bdcd7b647ee03dd1f216b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81d057e12dd615bb26358fe1efeeac1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
A.3 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次