名校
1 . 四棱柱
中,底面
为正方形,
,
为
中点,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ab9a7a4fbb926e94edca01abd3f330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6cbcad0b169d4b3eb62c3b198ac3413.png)
(1)证明;
(2)求点到平面
的距离.
![](https://img.xkw.com/dksih/QBM/2017/4/12/1664064130129920/1664121452068864/STEM/c39628a916c7420091ed7239c7a3f976.png?resizew=170)
您最近一年使用:0次
2017-04-12更新
|
1148次组卷
|
4卷引用:2017届江西师范大学附属中学高三3月月考数学(文)试卷
2 . 如图1,在
中,
是
边的中点,现把
沿
折成如图2所示的三棱锥
,使得
.
(1)求证:平面
平面
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9178fc8b5d65aa75fa9196294a0db7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0de086238dd316679ee02617d906f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9aed224abad6c436c7c1b4f05e48dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797b63230014b6706774fac07fbea3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df69a2811637fb24ca7f202662e3b461.png)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43241f57934797192bb048ea989eaebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc8ef8adf01fcdff495bb992233d52a.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f9da0507a3ba13bb9e51bbb503d98d.png)
![](https://img.xkw.com/dksih/QBM/2017/2/28/1633793148125184/1634620011372544/STEM/4efa001376ec4f3ab0737b8617cea1f6.png?resizew=299)
您最近一年使用:0次
2017-03-01更新
|
1598次组卷
|
2卷引用:2017届江西省师大附中、临川一中高三1月联考数学(理)试卷
名校
解题方法
3 . 如图,在三棱柱
中,已知
,
,点
在底面
上的投影是线段
的中点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/8c67e2f9-f104-45cb-a802-20c6670fe650.png?resizew=213)
(1)证明:在侧棱
上存在一点
,使得
平面
,并求出
的长;
(2)求三棱柱
的侧面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c462dcc5fba8c0a19d8b69366e01ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/8c67e2f9-f104-45cb-a802-20c6670fe650.png?resizew=213)
(1)证明:在侧棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de7ea432599108b34a0ccaa0f2c75e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)求三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
您最近一年使用:0次
2017-02-16更新
|
1088次组卷
|
5卷引用:2016-2017学年江西吉安一中高二文上学期段考二数学试卷
名校
解题方法
4 . 如图,在四棱锥
中,
平面
,底面
是菱形,点
是对角线
的交点,
是
的中点,且
.
(1)求证:
平面
;
(2)求证:平面
平面
;
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e77db8e97cf0910fec52f526d0e4b31.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75844725734f498eb983fe76cece2f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
.
![](https://img.xkw.com/dksih/QBM/2017/11/10/1814292463411200/1815190688522240/STEM/23b45f4fcf2d47e5956834a79153923f.png?resizew=219)
您最近一年使用:0次
2017-11-11更新
|
901次组卷
|
3卷引用:江西省赣州市十四县2017-2018学年高二期中联考数学理科试卷
名校
解题方法
5 . 如图,四棱锥
的底面为菱形且
,
底面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/16/11817584-90a2-45a7-99c8-9ed0a71fa5a6.png?resizew=178)
(1)求证:平面
平面
;
(2)求三棱锥
的体积.
(3)在线段
上是否存在一点
,使
平面
成立.如果存在,求出
的长;如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aedf65d7d930fdb972d4802c0dea8b5.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/f7ad3dbc04d45790fe4923ed6df2c434.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/16/11817584-90a2-45a7-99c8-9ed0a71fa5a6.png?resizew=178)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9a37505a6b72abc194ad202d52478e.png)
(3)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f1897a7e856b42f8cee0f286ad913d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
您最近一年使用:0次
名校
6 . 已知圆
的圆心在直线
上,且与直线
相切,被直线
截得的弦长为
.
(Ⅰ)求圆
的方程;
(Ⅱ)若
,
满足圆
的方程,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabfd32465e9e50409413d9c1358279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b577bfa750a02485971f2147ce4daac3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a6b676fc870f63c2431b66de9762af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(Ⅰ)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64255814aa2dd177e3209e92c0d30b4.png)
您最近一年使用:0次
名校
7 . 已知直线l:
与x轴交于A点,动圆M与直线l相切,并且和圆O:
相外切.
![](https://img.xkw.com/dksih/QBM/2019/1/12/2117183857025024/2118435462062080/STEM/0da26199b913480aa6cbaa172f208ab8.png?resizew=194)
求动圆圆心M的轨迹C的方程.
若过原点且倾斜角为
的直线与曲线C交于M、N两点,问是否存在以MN为直径的圆过点A?若存在,求出实数m的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0561def5a86e10c5f5335ff413ffcc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259e9a874ba8a4fbc027e01699a81d8c.png)
![](https://img.xkw.com/dksih/QBM/2019/1/12/2117183857025024/2118435462062080/STEM/0da26199b913480aa6cbaa172f208ab8.png?resizew=194)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65af1d6b6b831ebbdc36dda5f304a3a1.png)
您最近一年使用:0次
2017-12-11更新
|
526次组卷
|
8卷引用:江西省南昌市实验中学2017-2018学年高二上学期期中理科数学试题
江西省南昌市实验中学2017-2018学年高二上学期期中理科数学试题江西省南昌市实验中学2017-2018学年高二上学期期中文科数学试题(已下线)黄金30题系列 高二年级数学(理) 大题好拿分【基础版】【市级联考】河南省洛阳市2018-2019学年高一上学期期末数学试题1【市级联考】河南省洛阳市2018-2019学年高一上学期期末数学试题2安徽省合肥市肥东县高级中学2020-2021学年高二上学期第二次月考数学(文)试题安徽省滁州市定远县民族中学2020-2021学年高二上学期10月月考数学(理)试题(已下线)对点练51 直线与圆的位置关系-2020-2021年新高考高中数学一轮复习对点练
名校
8 . 已知抛物线
,过点
的直线
交抛物线于
两点,坐标原点为
,
.
(1)求抛物线的方程;
(2)当以
为直径的圆与
轴相切时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e38bd48c569e650474d63f1fb16125f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a43cfb653538dd742328104a5d0ba5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e80cacd79b9db31e1e7c7a3e3881f9.png)
(1)求抛物线的方程;
(2)当以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2016-12-03更新
|
900次组卷
|
8卷引用:江西省南昌市第二中学2016-2017学年高二下学期第三次月考数学(文)试题
名校
解题方法
9 . 已知四棱锥
,其中
面
,
面
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2017/12/19/1841734419415040/1843095035052032/STEM/781bfd7079084a7d9fbd27442fcdb2ea.png?resizew=136)
(1)求证:
面
;
(2)求证:面
面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604268293c7bf67997f40a9a0b0d1cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2017/12/19/1841734419415040/1843095035052032/STEM/781bfd7079084a7d9fbd27442fcdb2ea.png?resizew=136)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求证:面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
您最近一年使用:0次
2017-12-21更新
|
632次组卷
|
2卷引用:江西省九江第一中学2017-2018学年高一上学期第二次月考数学试题
名校
解题方法
10 . 如图,四边形ABCD与BDEF均为菱形,∠DAB=∠DBF=60°,且FA=FC.
![](https://img.xkw.com/dksih/QBM/2017/8/31/1763862367150080/1766216690229248/STEM/8c5ac5cd02ee45839bd0179a74d3b66e.png?resizew=177)
(Ⅰ)求证:AC⊥平面BDEF;
(Ⅱ)求证:FC∥平面EAD;
(Ⅲ)求二面角A﹣FC﹣B的余弦值.
![](https://img.xkw.com/dksih/QBM/2017/8/31/1763862367150080/1766216690229248/STEM/8c5ac5cd02ee45839bd0179a74d3b66e.png?resizew=177)
(Ⅰ)求证:AC⊥平面BDEF;
(Ⅱ)求证:FC∥平面EAD;
(Ⅲ)求二面角A﹣FC﹣B的余弦值.
您最近一年使用:0次
2017-09-03更新
|
1266次组卷
|
6卷引用:2016-2017学年江西省九江市重点高中高二下学期第一次段考数学(理)试卷