解题方法
1 . 已知曲线
,以下关于曲线C的结论正确的个数为( )
①曲线C关于
轴对称
②曲线C上有且仅有3个整点(整点指横纵坐标均为整数的点)
③曲线C上一点P满足
(
为坐标原点)
③曲线C上与图形
有且仅有两个公共点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/121070e738b6218249a964e3b4d80262.png)
①曲线C关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
②曲线C上有且仅有3个整点(整点指横纵坐标均为整数的点)
③曲线C上一点P满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c43a4782cfbeb91fa261adc48c4761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
③曲线C上与图形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a479cd7c32b15b8b19fd6eb358c4e6cc.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
21-22高二上·全国·期中
真题
2 . 给定四条曲线:①
,②
,③
,④
,其中与直线
仅有一个交点的曲线是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3d7e7ebcc791f47cc5af1d40941092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6205da5e1d2730ee0b3de8bca3e29f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46ab26e2d950296e9edb81bb20bdcff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7213c6c419ae349b6527cc38200507aa.png)
A.①②③ | B.②③④ | C.①②④ | D.①③④ |
您最近一年使用:0次
2021-11-28更新
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470次组卷
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4卷引用:2002年普通高等学校招生考试数学(理)试题(北京卷)
2002年普通高等学校招生考试数学(理)试题(北京卷)(已下线)专题13 圆锥曲线常考题型01——直线与圆锥曲线的位置关系中的常见问题及求解策略-【重难点突破】2021-2022学年高二数学上册常考题专练(人教A版2019选择性必修第一册)沪教版(2020) 选修第一册 领航者 第2章 每周一练(2)(已下线)专题3.6 直线与椭圆的位置关系-重难点题型检测-2022-2023学年高二数学举一反三系列(人教A版2019选择性必修第一册)
名校
3 . 椭圆短轴的两端点为
,
,过其左焦点
作
轴的垂线交椭圆于点
,若
是
和
的等比中项(
为中心),则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f65a2af5e4826b5143de3a1e165f914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb6bc32483b9b7049dd49bb25c99c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c40f1ab2df28d52e864f9fa7fd63a91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b8d8f38789cb08fedd3612acfe718a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知椭圆
的离心率
的取值范围为
,直线
交椭圆于点
为坐标原点且
,则椭圆长轴长的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1126fdf4fb65087acfd6eb23c26994e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec89d17a1b8f7961e2f1f27c2d50685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd36104c7358ec5d86aa50b4b035642a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-02-26更新
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947次组卷
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5卷引用:2017年清华大学429学术能力测试数学试题
2017年清华大学429学术能力测试数学试题【市级联考】浙江省宁波市2019届高三上学期期末考试数学试题(已下线)专题9.5 椭圆 (练)-浙江版《2020年高考一轮复习讲练测》(已下线)专题9.3 椭圆(练)-2021年新高考数学一轮复习讲练测(已下线)“8+4+4”小题强化训练(47)直线与椭圆-2022届高考数学一轮复习(江苏等新高考地区专用)
名校
5 . 对于曲线
,
,若存在点
和常数
,过点
任意引射线分别交
,
于点
,
,若
,那么称曲线
与
相似,相似比为
,点
为相似中心,则下面各组曲线中,原点是其相似中心的相似曲线有
①
,
; ②
,
;
③
,
; ④
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb166b53a49e393871bcb14a528792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a73c0e9444bcd2b7eefa8775cc118c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f642cc82f9cb94f68265b4ec78f8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5848e50805496263d52dcbde9671a89.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-04-04更新
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2卷引用:【全国百强校】北京市第八中学2017-2018学年高二理期末试题