名校
解题方法
1 . 如图所示,在菱形ABCD中,
且AB=2,E为AD的中点,将
沿
折至
,使
,得到如图所示四棱锥
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/27/9933651a-7dab-4bfa-ac15-89cc1cbb7110.png?resizew=288)
(1)求证:平面
平面
;
(2)若P为
的中点,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a6f36741b86f464be362b12bac13d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa485cf3776f36aaf4abaadaf30fb85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d413672162172ff916a9920f20bb98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e639841f0599ff4acbee6d51456a7889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1c9dfba740bb32b6f2e100fe424cd4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/27/9933651a-7dab-4bfa-ac15-89cc1cbb7110.png?resizew=288)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a832b538d0bd5a0051d485fae371a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719103f93166bab4828257608e641a9a.png)
(2)若P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a7ba7cd0c654714c967a900513ba16.png)
您最近一年使用:0次
2023-01-08更新
|
179次组卷
|
2卷引用:吉林省长春市北师大附属学校2021-2022学年高三上学期期初考试数学(理)试题
解题方法
2 . 平面直角坐标系中,O为坐标原点,椭圆E的左、右焦点分别为
,
,上、下顶点分别为
,
,若
,且椭圆E恰好经过点
.
(1)求椭圆E的标准方程;
(2)若经过点
的直线l与椭圆E交于M,N两点,求△F2MN的面积的最大值.
![](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/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1388be4f29174e4ad1444ec8d8e1d22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7167b1f25e38b061b3a234bf4d569a8.png)
(1)求椭圆E的标准方程;
(2)若经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
您最近一年使用:0次
解题方法
3 . 已知椭圆
:
的左、右焦点分别为
,
,点
,
分别为
的右顶点和上顶点,若
的面积是
的面积的3倍,且
.
(1)求
的标准方程;
(2)若过点
且斜率不为0的直线与
交于
,
两点,点
在直线
上,且
与
轴平行,求证:直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/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/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0458b055a063a730fc12bb0308cecf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d55bed96da7c7f4ec234a17043310c3.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cc033406da2cdd342308972c6701f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
您最近一年使用:0次
2021-06-25更新
|
617次组卷
|
2卷引用:吉林省长春市北师大附属学校2021-2022学年高三上学期期初考试数学(理)试题
名校
4 . 过双曲线
的左焦点
的直线与双曲线交
两点,且线段
的中点坐标为
,则双曲线方程是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fccf33cede6bc8c8794b48f5831c4e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8997d37876a9a3e1576bba11f8a953a7.png)
您最近一年使用:0次
2021-03-11更新
|
1052次组卷
|
6卷引用:吉林省长春外国语学校2020-2021学年高二下学期期初考试数学(理 )试题
吉林省长春外国语学校2020-2021学年高二下学期期初考试数学(理 )试题吉林省长春外国语学校2020-2021学年高二下学期期初考试数学试题(文 )试题(已下线)3.2.2 双曲线的简单几何性质(精练)-2021-2022学年高二数学一隅三反系列(人教A版2019选择性必修第一册)双曲线中的弦(已下线)第08讲 直线与椭圆、双曲线、抛物线 (高频考点,精讲)-1江苏省连云港市赣榆智贤中学2023-2024学年高二上学期第一次学情检测数学试题
名校
解题方法
5 . 如图,在四棱锥
中,底面
为正方形,
⊥底面
,
,
为
的中点,
为线段
上的动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/51c9e34a-545d-4e85-9890-83a5271594bd.png?resizew=192)
(Ⅰ)求证:平面
平面
;
(Ⅱ)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/51c9e34a-545d-4e85-9890-83a5271594bd.png?resizew=192)
(Ⅰ)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501f1c913a4ef64957a2f01ab5baa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(Ⅱ)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9efe0163c030c2f493258c8b3635ee.png)
您最近一年使用:0次
2020-09-21更新
|
549次组卷
|
5卷引用:吉林省长春市普通高中2021届高三一模数学理科试题
吉林省长春市普通高中2021届高三一模数学理科试题吉林省长春外国语学校2021-2022学年高三上学期期初考试数学(理)试题吉林省长春市2021届高三质量监测理科数学一模试题吉林省长春市第六中学2022-2023学年高三上学期第一次月考数学试题(已下线)【南昌新东方】江西省南昌十七中2020-2021学年高三上学期10月第一次月考数学(理)试题
名校
解题方法
6 . 过抛物线
的焦点
作倾斜角为
的直线,交抛物线于
,
两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.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/88bee8e70f1fab639be1636c7bce0477.png)
您最近一年使用:0次
2021-03-14更新
|
261次组卷
|
7卷引用:吉林省长春外国语学校2020-2021学年高二下学期期初考试数学(理 )试题
7 . 已知双曲线
:
的右焦点为
,以
为圆心,以
为半径的圆交双曲线
的右支于
,
两点(
为坐标原点),
的一个内角为
,则双曲线
的离心率为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.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/bd8b3616d8d33f54ddac1c485a95a7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45b8b000c9c286bff8a480dbf03b513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2019-05-12更新
|
1421次组卷
|
4卷引用:吉林省长春市北师大附属学校2021-2022学年高三上学期期初考试数学(理)试题
吉林省长春市北师大附属学校2021-2022学年高三上学期期初考试数学(理)试题重庆市缙云教育联盟2021-2022学年高二上学期9月月度质量检测数学试题【市级联考】山东省济宁市2019届5月高考模拟考试(二模)理科数学试题(已下线)专题28 双曲线-冲刺2020高考跳出题海之高三数学模拟试题精中选萃
名校
8 . 已知命题
:“
,
”,命题
:“
,
””若“
”是真命题,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90622a1b5ad9f9b9b000f2ef7f276706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bb07fd7a9a94f4135151e36140fdd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9d53db986fa98cf9391c6d30870338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-07-06更新
|
3938次组卷
|
22卷引用:吉林省长春市北师大附属学校2021-2022学年高三上学期期初考试数学(理)试题
吉林省长春市北师大附属学校2021-2022学年高三上学期期初考试数学(理)试题黑龙江省大庆中学2020-2021学年高二上学期期末考试数学(文)试题江西省南昌市新建一中2020-2021学年高二下学期开学考试数学(文)试题四川省绵阳市江油中学2020-2021学年高二下学期期中数学(文)试题陕西省咸阳市武功县普集高中2021-2022学年高二上学期第三次月考理科数学试题甘肃省武威第六中学2021届高三上学期第一次过关考试(开学考试)数学(理)试题江苏省南通第一中学2018-2019学年高二上学期7月月考数学试题甘肃省天水市一中2020届高三一轮复习第一次模拟考试理科数学试题甘肃省天水市一中2020届高三一轮复习第一次模拟考试文科数学试题(已下线)2020届高三12月第01期(考点01)(文科)-《新题速递·数学》甘肃省天水市第一中学2018-2019学年高二下学期第三学段(期末)数学(文)试题甘肃省天水市第一中学2018-2019学年高二下学期第三学段(期末)数学(理)试题2020届宁夏银川三沙源上游学校高三下学期第二次模拟考试理科数学试题(已下线)专题01 集合与常用逻辑用语——2020年高考真题和模拟题理科数学分项汇编(已下线)考点03 全称量词与存在量词(考点专练)-备战2021年新高考数学一轮复习考点微专题黑龙江省牡丹江市第一高级中学2020-2021学年高三上学期开学考试数学(文)试题安徽省安庆市宿松县程集中学2020-2021学年高三上学期9月月考数学(文)试题黑龙江省八校2020-2021学年高三摸底考试数学(理)试题陕西省西安市长安区第一中学2020-2021学年高二上学期第二次月考数学(文)试题陕西省咸阳市实验中学2020-2021学年高二上学期第四次月考数学(理)试题四川省内江市威远中学2020-2021学年高三12月月考数学(文)试题河南省南阳市第六完全学校高级中学2022-2023学年高三上学期9月考试文科数学试题
名校
解题方法
9 . 双曲线
的渐近线方程和离心率分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565bc68d208cd5e0c90a32851faf3814.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2018-11-15更新
|
549次组卷
|
8卷引用:吉林省长春外国语学校2020-2021学年高二下学期期初考试数学(理 )试题
吉林省长春外国语学校2020-2021学年高二下学期期初考试数学(理 )试题吉林省长春外国语学校2020-2021学年高二下学期期初考试数学试题(文 )试题福建省莆田锦江中学2020-2021学年高二上学期期末考试数学试题山西省晋城市陵川第一中学2016-2017学年高二下学期期中考试数学(文)试题【全国百强校】广东省湛江第一中学2017-2018学年高二下学期期中考试数学(文)试题湖南省常德市2018-2019学年高二下学期期中数学(文)试题安徽省亳州市涡阳县第九中学2019-2020学年高二下学期7月月考数学(文)试题广西百色市2021-2022学年高二上学期期末教学质量调研测试数学(文)试题
名校
10 . 如图,已知椭圆
)的右顶点和上顶点分别为
=
,离心率为
.
![](https://img.xkw.com/dksih/QBM/2017/12/28/1848074648166400/1851590122528768/STEM/5002e0a8acd848148f2ab614a8db96e4.png?resizew=162)
(1)求椭圆的标准方程;
(2)过点
作斜率为
)的直线
与椭圆交于另外一点
,求
面积的最大值,并求此时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077879267c93a909ead54cbabd0d8bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bfed8f18c476a6615183e6147aef4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30efdb9c7eb4b788352056f3edf21635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c6fe12d3a9727e00ef87a630302ab.png)
![](https://img.xkw.com/dksih/QBM/2017/12/28/1848074648166400/1851590122528768/STEM/5002e0a8acd848148f2ab614a8db96e4.png?resizew=162)
(1)求椭圆的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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2018-01-02更新
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563次组卷
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5卷引用:吉林省长春外国语学校2020-2021学年高二下学期期初考试数学(理 )试题