名校
1 . 已知点E是棱长都为2的正四棱锥
的棱PC的中点,空间中一点M满足
,其中x,y,
,且
.当
最小时,有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71830b7cabcfe9287c3e7265bfa712ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73ae1525f0cc276599819cb69398b4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd24c686fbaaa68705d654b880481ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cecfaa608d513105f59d1b310800374.png)
A.![]() |
B.![]() |
C.EM与底面ABCD所成的角是![]() |
D.四棱锥![]() ![]() ![]() |
您最近一年使用:0次
名校
2 . 下列命题为真命题的是( )
A.已知a、b、c、d是空间中的四条不同直线,若![]() ![]() |
B.已知a、b是两条直线,![]() ![]() ![]() ![]() |
C.已知m、n是两条空间直线,![]() ![]() ![]() |
D.已知AB、CD是平面![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
3 . 已知直线
是平面
的斜线,且与平面
交于点
,
在平面
上的射影为
,在平面
内过点
作一条直线
,直线
和直线
不重合,直线
与平面
所成的角为
,直线
与直线
所成的角为
,直线
与直线
所成的角为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
A.![]() | B.![]() |
C.![]() | D.以上说法都不对 |
您最近一年使用:0次
2022-07-10更新
|
2682次组卷
|
7卷引用:湖南省衡阳市部分学校2021-2022学年高二下学期期末联考数学试题
湖南省衡阳市部分学校2021-2022学年高二下学期期末联考数学试题河南省新乡市2021-2022学年高二下学期期末数学理科试题(已下线)专题9 立体几何(已下线)2023年高考全国乙卷数学(理)真题变式题6-10(已下线)第五篇 向量与几何 专题17 三正弦定理、三余弦定理 微点1 三正弦定理、三余弦定理(已下线)第二章 立体几何中的计算 专题一 空间角 微点5 直线与平面所成角综合训练【培优版】(已下线)第二章 立体几何中的计算 专题一 空间角 微点11 三正弦定理与三余弦定理(一)【培优版】
名校
解题方法
4 . 如图,四面体ABCD的表面积为S,体积为V,E、F、G、H分别是AB、BC、CD、DA上的点,且
平面EFGH,
平面EFGH,设
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/d133caf6-1033-4fdc-ac46-1a32fc37ce3e.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429551ecb5930b2f033019e4d5b37ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e3c0430146b7b8d40ebb721a4d0de19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9aae7639b35ae15b9e78a1e1314b94a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/d133caf6-1033-4fdc-ac46-1a32fc37ce3e.png?resizew=179)
A.四边形EFGH是正方形 |
B.AE和AH与平面EFGH所成的角相等 |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
5 . 已知
是平面
内一条直线,
是平面
的一条斜线,且
在平面
内的射影为
,若
与
的夹角为
,
与
的夹角为
,则
与平面
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 如图:
为圆锥的轴截面,
,
,点E为
的中点,过点E作既与直线
平行又与平面
垂直的截面,该平面与圆锥底面上的圆周交于F,G两点,记直线
与圆锥底面所成的角为
,记直线
与截面所成的角为
,则
与
的关系为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/eabbd45c-144a-4098-9ca9-be74b6fb6730.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e12bfde565540f059dd27ea47dfaa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/eabbd45c-144a-4098-9ca9-be74b6fb6730.png?resizew=179)
A.![]() | B.![]() | C.![]() | D.以上都有可能 |
您最近一年使用:0次
解题方法
7 . 如图,矩形
中,
,
,
.将梯形ADEF沿着EF翻折成梯形
,则
与平面
所成角可以是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/8d4d14ed-890f-4df8-86e7-fc3cacf4f6bd.png?resizew=225)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f2125dfe51596f77b060572f706cbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c377acc19c91389f232a62ccca339e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7710eefb1dbdead21ba105c6bf7d9e5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39e577ab78d9a105f7013d41459504d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6f2e1582ded01336a77ae86f1251e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/8d4d14ed-890f-4df8-86e7-fc3cacf4f6bd.png?resizew=225)
A.90° | B.75° | C.45° | D.30° |
您最近一年使用:0次
21-22高二上·浙江·期末
解题方法
8 . 矩形
中,
,
,E在
上,且
,现沿
,
将
,
折起,使得点C落在
上,设此时
,
与平面
所成的角分别是为
,则( )
![](https://img.xkw.com/dksih/QBM/2021/6/11/2740933043470336/2740967180206080/STEM/b102827e1d2344a3801b5609c0224af2.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348fb71fbc47fd87e9ce011652ef4186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://img.xkw.com/dksih/QBM/2021/6/11/2740933043470336/2740967180206080/STEM/b102827e1d2344a3801b5609c0224af2.png?resizew=142)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
20-21高二下·浙江·期末
解题方法
9 . 已知等腰
内接于圆O,点M是下半圆弧上的动点(如图所示),现将上半圆面沿
折起,使所成的二面角
为
.则直线
与直线
所成角的最小值是( )
![](https://img.xkw.com/dksih/QBM/2021/6/2/2734567318634496/2734839445168128/STEM/77bb92df054247c0b3770bf51f3d8269.png?resizew=135)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9bb88a00291932b8ee857904c104d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://img.xkw.com/dksih/QBM/2021/6/2/2734567318634496/2734839445168128/STEM/77bb92df054247c0b3770bf51f3d8269.png?resizew=135)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 如图所示,圆锥的轴截面
是以
为直角顶点的等腰直角三角形,
,
为
中点.若底面
所在平面上有一个动点
,且始终保持
,过点
作
的垂线,垂足为
.当点
运动时,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/091a2b5e-b4d4-4ebc-98f6-a796eb74fba6.png?resizew=172)
①点
在空间形成的轨迹为圆
②三棱锥
的体积最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d7abf02717d6e59d8a64a65a87c412.png)
③
的最大值为2
④
与平面
所成角的正切值的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
上述结论中正确的序号为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76491e815433aee93310af8066f45e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/091a2b5e-b4d4-4ebc-98f6-a796eb74fba6.png?resizew=172)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
②三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0525edf8863c1dde10c5cd83916c05c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d7abf02717d6e59d8a64a65a87c412.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb717b62d5d4128157417ecb62f7f7e.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
上述结论中正确的序号为( ).
A.①② | B.②③ | C.①③④ | D.①②③ |
您最近一年使用:0次
2021-06-03更新
|
1823次组卷
|
6卷引用:河南省济源市第一中学2022-2023学年高二下学期开学实验班数学试题
河南省济源市第一中学2022-2023学年高二下学期开学实验班数学试题安徽师范大学附属中学2021届高三下学期5月最后一卷理科数学试题(已下线)热点08 立体几何-2022年高考数学【热点·重点·难点】专练(新高考专用)(已下线)专题23 立体几何中的压轴小题-1辽宁省本溪市高级中学2023-2024学年高三上学期高考适应性测试(一)数学试题(已下线)第二章 立体几何中的计算 专题一 空间角 微点4 直线与平面所成角(二)【基础版】