名校
1 . 如图所示,过抛物线
的焦点
的直线
交抛物线于
,
两点,交其准线于点
,若
,且
,则
=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.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/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/7e58c044e7f97d195b09ada900fddc17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be67c5efb824cadcaf0a993a55c932a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/91e7c340-b195-420d-8f1d-d0d04581e193.png?resizew=206)
您最近一年使用:0次
解题方法
2 . 已知动圆
过定点
,且截
轴所得弦长为
,设圆心
的轨迹为曲线
.
(1)求曲线
的方程;
(2)若
为曲线
上的两个动点,且线段
的中点
到
轴距离
,求
的最大值,并求此时直线
方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca24cd3340d6c08770fed53362de013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf94d263ea1e5ddad405ccbc1eb2a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05da40a2d7dab5d6a003906ca19d4749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解题方法
3 . 已知点
是双曲线
的左、右焦点,以线段
为直径的圆与双曲线在第一象限的交点为
,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd29aa3bd463abf39a3f63e077abcc28.png)
A.![]() |
B.![]() ![]() |
C.双曲线的离心率为![]() |
D.直线![]() |
您最近一年使用:0次
名校
4 . 已知点
为椭圆
的左顶点,
为坐标原点,过椭圆的右焦点F作垂直于x轴的直线l,若直线l上存在点P满足
,则椭圆离心率的最大值______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172bf45ffccc96f853e8df18a2e0245a.png)
您最近一年使用:0次
2022-02-15更新
|
2387次组卷
|
8卷引用:山西省运城市2022届高三上学期期末数学(理)试题
山西省运城市2022届高三上学期期末数学(理)试题安徽省合肥市第一中学2021-2022学年高二下学期3月测试数学试题湖北省荆州市沙市中学2022-2023学年高三上学期第二次月考数学试题(已下线)专题38 椭圆及其性质-4(已下线)专题28 轻松搞定圆锥曲线离心率十九大模型-3(已下线)考向35 离心率的多种妙解方式(十四大经典题型)-2(已下线)重难点突破04 轻松搞定圆锥曲线离心率十九大模型(十九大题型)-3(已下线)第05讲 椭圆及其性质(八大题型)(讲义)-3
解题方法
5 . 已知
为坐标原点,抛物线C:
的焦点为F,P为抛物线C上一点,PF与y轴垂直,Q为y轴上一点,且
,若
.
(1)求
;
(2)设点
,过点
作两条不同的直线分别交抛物线C于A,B两点和D,E两点,且满足
,求证
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad780ce9bac48bc3027bc343e7dc8556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693d0d0814e022413c3018f0ee25d4a7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e584f799ea554fc5533925ead4672501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5421aa8aa91be1ed4d3ea9e3635f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b82e181268050d93d192e3dc086c26.png)
您最近一年使用:0次
名校
解题方法
6 . 已知双曲线
(
,
)的离心率为
,则
的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8f7e40ba386c0a9675896b52752d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-03-18更新
|
792次组卷
|
12卷引用:【校级联考】山西省芮城县2018-2019学年高二上学期期末考试数学(理)试题
【校级联考】山西省芮城县2018-2019学年高二上学期期末考试数学(理)试题宁夏回族自治区银川市贺兰县第一中学2023-2024学年高二上学期期末数学试题重庆市云阳江口中学校2020-2021学年高二上学期第二次月考数学试题福建省莆田第一中学2022-2023学年高二下学期3月月考数学试题(A)湖北省十堰市郧阳区第二中学2022-2023学年高二下学期3月月考数学试题宁夏石嘴山市平罗中学2023届高三第四次模拟数学(文)试题宁夏平石嘴山市罗中学2022-2023学年高二下学期期中考试数学(文)试题广东省揭阳市普宁市华侨中学2023届高三二模数学试题江西省景德镇市乐平中学2023-2024学年高二上学期11月期中考试数学试题新疆维吾尔自治区喀什地区巴楚县第一中学2023-2024学年高二上学期12月月考数学试题(已下线)3.2.2 双曲线的几何性质(8大题型)-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)(已下线)3.2.2 双曲线的简单几何性质(8大题型)精讲-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019选择性必修第一册)
名校
7 . 在棱长为1的正方体
中,
,
分别是棱
,
上的点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2022-01-25更新
|
267次组卷
|
3卷引用:山西省运城市康杰中学2021-2022学年高二上学期期末数学试题
名校
解题方法
8 . 已知双曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
,
的渐近线方程为
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e622d1087ac55db6fa3e450199446f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10549c4bed9615fba8d97c781e989599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e0d4e3e322585fefe4c25020eda176.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 命题“
,
”的否定是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44c06c5614ade2a0349129f01ead42e.png)
您最近一年使用:0次
名校
解题方法
10 . 如图,正方形
和矩形
所在的平面互相垂直,
,
,
是线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/10abf3ff-e569-4b11-8802-8bdf95b1896b.png?resizew=196)
(1)求证:
平面
;
(2)求证:平面
平面
;
(3)求平面
与平面
夹角的余弦值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0cee0f36dc452e58086832c0152b641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/10abf3ff-e569-4b11-8802-8bdf95b1896b.png?resizew=196)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac480d8d9d7821b62a603cf5cfda236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddb7c2ca1b6bee86cb24fed02e40da2.png)
您最近一年使用:0次
2022-01-22更新
|
401次组卷
|
2卷引用:山西省运城市康杰中学2021-2022学年高二上学期期末数学试题