解题方法
1 . 已知椭圆
与直线
交于A,B两点,点
满足
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92128c8815407943c0368bc96c992287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbcaa8c9422b88e5f7e5aa89f0910492.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e65611df39794fec95423cc1289d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258cf12e94392cbe9880218a69267f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.6 | C.![]() | D.![]() |
您最近一年使用:0次
2021-11-27更新
|
331次组卷
|
2卷引用:辽宁省锦州市辽西育明高级中学2022-2023学年高二上学期期中数学试题
2 . 已知抛物线
,直线
与抛物线
交于
,
两点,若以
为直径的圆与
轴相切,则
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54623bccef254857ad663fe6d18f320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 对任意的实数
,直线
与椭圆
恒有公共点,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef26d052a1ed0ecb7504d47d4029cea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9645e4bbf8c1126d8c30719f2dee3651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次