2023·江西吉安·一模
解题方法
1 . 在底面为矩形的四棱锥
中,
底面
,M为
边上的动点,
的最大值为
.
(1)求
;
(2)当
取最大值时,求点M到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d97cabda4c2b19daba30509b980413b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5071953255f6434eaefeab7176372564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a4e603a1feb6ccb810601951fd6d1c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5071953255f6434eaefeab7176372564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
您最近一年使用:0次
2 . 如图,
为圆锥的顶点,
,
为底面圆两条互相垂直的直径,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/c9c3ef34-e876-4900-b6fd-2d5f06a4d927.png?resizew=184)
(1)证明:平面
平面
.
(2)若
,且直线
与平面
所成角的正切值为
,求该圆锥的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/c9c3ef34-e876-4900-b6fd-2d5f06a4d927.png?resizew=184)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
您最近一年使用:0次
2023-03-25更新
|
1202次组卷
|
6卷引用:陕西省部分名校2023届高三下学期高考仿真模拟文科数学试题
3 . 如图,点C在直径为
的半圆O上,
垂直于半圆O所在的平面,
平面
.且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/20/8ebb62b3-430d-4083-a12f-a5d21abcb53d.png?resizew=183)
(1)证明:平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)若
,
,异面直线
与
所成的角是
,求三棱锥
的外接球的表面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963a91995abd4927d75406d16e10a81f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef0f4f2fa1f55c4d82d11ac48566489.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/20/8ebb62b3-430d-4083-a12f-a5d21abcb53d.png?resizew=183)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06201e4f55b78d8b30afb257d5a1b16b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf81f142b84adcf278b51c62c88e6afc.png)
您最近一年使用:0次
名校
4 . 在长方体
中,已知异面直线
与
,
与AB所成角的大小分别为
和
,则直线
和平面
所成的角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-23更新
|
874次组卷
|
6卷引用:四川省大数据精准教学联盟2023届高三第一次统一监测文科数学试题
名校
解题方法
5 . 如图,直三棱柱
中,
,D为
上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/aed20309-dc00-4195-b1bc-e6d06a7fe5e4.png?resizew=143)
(1)证明:当D为
的中点时,平面
平面
;
(2)若
,异面直线AB和
所成角的余弦值为
时,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29ef5a1361ddf48f47a1f8fdb6c08e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/aed20309-dc00-4195-b1bc-e6d06a7fe5e4.png?resizew=143)
(1)证明:当D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0fbd88fdb064072eedd136e9cb41ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64e76a4c1e5934f51cdca2ffbc8313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef30620deef1165d60bd5d0dade9145.png)
您最近一年使用:0次
6 . 设异面直线
所成的角为
,经过空间一定点
有且只有四条直线与直线
所成的角均为
,则
可以是下列选项中的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb94bd9eb80fb9f5f02f518bb8f2211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-01-12更新
|
303次组卷
|
2卷引用:四川省绵阳市绵阳中学2023届高三高考模拟理科数学试题(三)
7 . 如图,
内接于圆O,AB为圆O的直径,AB=10,BC=6,
平面ABC,E为AD的中点,且____________,则点A到平面BCE的距离为( )
①异面直线BE与AC所成角为60°;
②三棱锥D−BEC的体积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a554e03744b5befe9e0939377dafa8a.png)
注:从以上两个条件中任选一个,补充在横线上并作答.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/11093ff0-5839-49a8-a3ce-aeeccaa84d5a.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
①异面直线BE与AC所成角为60°;
②三棱锥D−BEC的体积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a554e03744b5befe9e0939377dafa8a.png)
注:从以上两个条件中任选一个,补充在横线上并作答.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/11093ff0-5839-49a8-a3ce-aeeccaa84d5a.png?resizew=199)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-01-03更新
|
577次组卷
|
3卷引用:四川省成都市石室中学2023届高三下学期高考专家联测卷(四)数学(理)试题
8 . 三棱锥
中,BA、BC、BD两两互相垂直,且
,E是AC中点,异面直线AD与BE所成的角大小为
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46586578f443717be4ea19c5c562b6d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63594fe6c8fc7b8c28e9cd37aab0dd87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46586578f443717be4ea19c5c562b6d3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/23b758e8-9fa9-4463-9f42-ede547f0606c.png?resizew=157)
您最近一年使用:0次
2022-11-06更新
|
232次组卷
|
6卷引用:上海市奉贤区2022届高三下学期5月高考模拟数学试题
上海市奉贤区2022届高三下学期5月高考模拟数学试题上海市市西中学2021-2022学年高二上学期期中数学试题(已下线)第19讲 立体几何初步-1(已下线)专题10立体几何初步必考题型分类训练-22000年普通高等学校招生考试数学(文)试题(上海卷)2000年普通高等学校招生考试数学(理)试题(上海卷)
名校
9 . 在四面体
中,
平面
,
平面
,
,且异面直线
与
的夹角为
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1aac055263010139f6eb4df68f9d619.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-10-11更新
|
772次组卷
|
4卷引用:2023年普通高等学校招生星云线上统一模拟考试Ⅰ数学试卷
2023年普通高等学校招生星云线上统一模拟考试Ⅰ数学试卷广东省广州七中2023届高三上学期1月月考数学试题(已下线)第七章 综合测试A(基础卷)(已下线)第16讲 拓展一:立体几何中空间角的问题和点到平面距离问题-【帮课堂】(人教A版2019必修第二册)
名校
解题方法
10 . 如图,空间直角坐标系中,四棱锥
的底面是边长为
的正方形,且底面在
平面内,点
在
轴正半轴上,
平面
,侧棱
与底面所成角为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/26/03fd7b79-b2ff-47fb-8bed-16f1dc48bc5a.png?resizew=182)
(1)若
是顶点在原点,且过
、
两点的抛物线上的动点,试给出
与
满足的关系式;
(2)若
是棱
上的一个定点,它到平面
的距离为
(
),写出
、
两点之间的距离
,并求
的最小值;
(3)是否存在一个实数
(
),使得当
取得最小值时,异面直线
与
互相垂直?请说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b69c41147a67cb486426ee88bd41ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/26/03fd7b79-b2ff-47fb-8bed-16f1dc48bc5a.png?resizew=182)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a981ba31f88bc334c209cfc77ad83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606ef9cb8c9c4f61ab2acc4c11fec693.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/695a323a71edcf6995df52aae709bbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695a323a71edcf6995df52aae709bbd6.png)
(3)是否存在一个实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606ef9cb8c9c4f61ab2acc4c11fec693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695a323a71edcf6995df52aae709bbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
您最近一年使用:0次
2022-06-23更新
|
652次组卷
|
5卷引用:2018年上海市复旦附中高三5月三模数学试题
2018年上海市复旦附中高三5月三模数学试题上海市复旦大学附属中学2016届高三下学期5月月考数学试题辽宁省部分高中2021-2022学年高三上学期期中评测数学试题(已下线)专题32 空间向量及其应用-6(已下线)专题19 空间几何解答题(理科)-2