名校
解题方法
1 . 已知离心率为
的椭圆
经过点
.
(1)求椭圆
的标准方程;
(2)设点
关于
轴的对称点为
,过点
斜率为
,
的两条动直线与椭圆
的另一交点分别为
、
(
、
皆异于点
).若
,求
的面积
最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfbd6e237afa5ad643eeeed6e2aa9fc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d5d91bc5df7a7ee71e10dd6686a82d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac9e0b90cd7268f22bc13254533f42b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0023c9e8e0fec24d3aa77d09b2e4e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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名校
解题方法
2 . 已知
分别为双曲线
的两个焦点,
上的点
到原点的距离为
,且
,则双曲线
的渐近线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97aa3c907b65459cfd72361da90f109b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0794d09a937ec074db20db27171bf2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
2021-02-15更新
|
1051次组卷
|
3卷引用:江苏省徐州市第一中学2020-2021学年高三上学期期末数学试题
名校
解题方法
3 . 已知抛物线
上三点
、
、
,
为抛物线的焦点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266504a4bd910b292c74765dc9772f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708d0e76f524d0e8a48db01392faac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
A.抛物线的准线方程为![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-02-15更新
|
988次组卷
|
3卷引用:江苏省徐州市第一中学2020-2021学年高三上学期期末数学试题
江苏省徐州市第一中学2020-2021学年高三上学期期末数学试题(已下线)专题33 仿真模拟卷01-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)山东省滨州市滨城区北镇中学2022-2023学年高三上学期数学模拟试题
4 . 如图,在四棱锥
中,底面
为菱形,
平面
,E是
上的点.
![](https://img.xkw.com/dksih/QBM/2021/2/6/2652108139528192/2653164513837056/STEM/8811f8b3c23a49d1be462a4e13c62c27.png?resizew=265)
(1)当E是
的中点时,求证:
平面
;
(2)设
,
,若直线
与平面
所成角的正弦值为
,求
的长.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2021/2/6/2652108139528192/2653164513837056/STEM/8811f8b3c23a49d1be462a4e13c62c27.png?resizew=265)
(1)当E是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30067b7b236d17af8a462f96a58d11bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9641d01140939c44450bf39773272af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
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5 . 已知抛物线
的焦点为F,准线为l,过F的直线与E交于A,B两点,C,D分别为A,B在l上的射影,且
,M为
中点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4fb72e39d79b7a0cd892fa5fa34bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c264dd2a2ce418ab14e573a668b169f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.直线![]() ![]() |
C.![]() ![]() | D.![]() |
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6 . 已知椭圆
与直线
交于点A,B,点M为
的中点,直线
(O为原点)的斜率为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b9afe6e2307c6a8b0097a6c45b227c.png)
____________ ;又
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84321d37ec168d51bdc810a007845c38.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296f6b73bcb1ea61bff5367a9a918613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b9afe6e2307c6a8b0097a6c45b227c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84321d37ec168d51bdc810a007845c38.png)
您最近一年使用:0次
7 . 如图,几何体为圆柱
的一半,四边形
为圆柱
的轴截面,点
为圆弧
上异于
,
的点,点
为线段
上的动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/7bf9cdf9-2854-4102-ab4f-cc1bae69476c.png?resizew=156)
(1)求证:
;
(2)若
,
,
,且直线
与平面
所成角的正弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/7bf9cdf9-2854-4102-ab4f-cc1bae69476c.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d498c5bd6f0bc27ab2ebd2c003c666.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7719aa677cf563cf295b1588eab60d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20af148464904e21f4374cc8fb886fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f75c42c77264076166fff76cfab4ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc046ee7804a9ff650a90b23e9805f1e.png)
您最近一年使用:0次
8 . 在平面直角坐标系
中,设抛物线
与双曲线
及其渐近线在第一象限的交点分别为
,
,抛物线的焦点
恰与双曲线的右顶点重合,
轴,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b9afe6e2307c6a8b0097a6c45b227c.png)
________ ;若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323232ab36943d1d5d2831d70ffcff87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b9afe6e2307c6a8b0097a6c45b227c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b405b5b082acbf79552e83648f3764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
您最近一年使用:0次
名校
9 . 嫦娥奔月是中华民族的千年梦想.2020年12月我国嫦娥五号“探月工程”首次实现从月球无人采样返回.某校航天兴趣小组利用计算机模拟“探月工程”,如图,飞行器在环月椭圆轨道近月点制动(俗称“踩刹车”)后,以
的速度进入距离月球表面
的环月圆形轨道(月球的球心为椭圆的一个焦点),环绕周期为
,已知远月点到月球表面的最近距离为
,则( )
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650117800648704/2652375316447232/STEM/3ededc1c-51cc-4a4f-b899-ce8d84e66913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5753c6fed464d063344a17956857718d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20560f541883a1f037552530feb2071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a54eb2123d9eafa3b923287abe8b5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb31cf74f744a00700742e52907dd24c.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650117800648704/2652375316447232/STEM/3ededc1c-51cc-4a4f-b899-ce8d84e66913.png)
A.圆形轨道的周长为![]() |
B.月球半径为![]() |
C.近月点与远月点的距离为![]() |
D.椭圆轨道的离心率为![]() |
您最近一年使用:0次
2021-02-06更新
|
2443次组卷
|
10卷引用:江苏省南通市海安市2020-2021学年高三上学期期末数学试题
江苏省南通市海安市2020-2021学年高三上学期期末数学试题江苏省南京师范大学附属扬子中学2021届高三下学期四模数学试题(已下线)专题10 解析几何(练)-2021年高考数学二轮复习讲练测(新高考版)福建省福州市第一中学2021届高三适应性练习(一)数学试题(已下线)考点40 椭圆-备战2022年高考数学(理)一轮复习考点帮(已下线)考点38 椭圆-备战2022年高考数学(文)一轮复习考点帮(已下线)第5题 椭圆定义的应用-2021年高考数学真题逐题揭秘与以例及类(新高考全国Ⅰ卷)福建省泉州科技中学2022届高三上学期期中考试数学试题(已下线)第十一章 圆锥曲线专练4—椭圆的离心率-2-2022届高三数学一轮复习(已下线)专题8 第2讲 圆锥曲线的定义、方程与性质
10 . 如图,在四棱锥
中,
,
,
,
为
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/26750074-42fe-4109-8b32-540e4d1fe159.png?resizew=183)
(1)求证:
;
(2)若
,
,求直线
与平面
所成角的正弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f90126f831d6600522ecaa66c2a8b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32dbe79c450f9667964763ac0c962a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd6a2b112facda441f4e34bf5c145fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b212ff4649b37b655010ef687a5f4fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/26750074-42fe-4109-8b32-540e4d1fe159.png?resizew=183)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
您最近一年使用:0次