2024高二·全国·专题练习
解题方法
1 . 已知双曲线
,直线
,试确定实数k的取值范围,使:
(1)直线l与双曲线有两个公共点;
(2)直线l与双曲线有且只有一个公共点;
(3)直线l与双曲线没有公共点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4334e343daae170f14d086661bc5792a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72eeed455051e355653892f1f8bbfba5.png)
(1)直线l与双曲线有两个公共点;
(2)直线l与双曲线有且只有一个公共点;
(3)直线l与双曲线没有公共点.
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2024高二上·全国·专题练习
解题方法
2 .
是抛物线
上的两点,
为坐标原点.若
,且
的面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2979f64c85f82d8975d73ee1c342de.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f4123c19136d3a4dc040dce8e34e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b81fa165204125527eaaeff030e447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7dc603317eb90974c75efec9f02b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2979f64c85f82d8975d73ee1c342de.png)
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2024高二上·全国·专题练习
解题方法
3 . 已知抛物线
:
的焦点为
,过点
的直线
交
于
,
两点,交
的准线于点
.若
为线段
的中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b998f232a34711a14a99116248495526.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b998f232a34711a14a99116248495526.png)
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2024高二·全国·专题练习
解题方法
4 . 已知双曲线
上两个不同的点A,B关于直线
对称,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c465114dc2665d74246240b1d4d26ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
您最近一年使用:0次
解题方法
5 . 已知抛物线
和圆
,若抛物线与圆在交点处的切线互相垂直,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c649a1c8fa9d55613723d80d3f4833b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2024高二上·全国·专题练习
解题方法
6 . 过抛物线
的焦点且倾斜角为
的直线交抛物线
于
两点,则线段
的中点到抛物线
的准线的距离为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2024高二上·全国·专题练习
7 . 以x轴为对称轴的抛物线的通径(过焦点且与对称轴垂直的弦)长为8,若抛物线的顶点在坐标原点,则其方程可以为( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024高二·全国·专题练习
解题方法
8 . 双曲线
的左右焦点分别为
,
,点
为双曲线上异于顶点的任意一点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124b231bf2cd3746f35e6c68cd7178f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc35834c7d73622523c90b62e4e36de.png)
A.![]() | B.![]() | C.1 | D.![]() |
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2024高二上·全国·专题练习
9 . 已知直线
与椭圆
.
(1)若它们有两个公共点,求
的取值范围;
(2)若它们只有一个公共点,求公共点的横坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54479885d4ab2f717d2e97718da04b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
(1)若它们有两个公共点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若它们只有一个公共点,求公共点的横坐标.
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名校
解题方法
10 . 抛物线
的焦点为
、
为其上一动点,当
运动到
时,
,直线
与抛物线相交于
、
两点,点M(2,2),下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97afdeaa1d4433cffe5005446fcbbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](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/32293d25fb98c1d6b858234b23081010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a0328dde917c3e6d0f1ca9ddb6027b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.抛物线的方程为:![]() |
B.抛物线的准线方程为:![]() |
C.当直线![]() ![]() ![]() ![]() |
D.以M为中点的弦的直线方程为:![]() |
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