1 . 如图,在直三棱柱
中,
,
,
,
,点
是棱
的中点.
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cb62f4c1e0e023619922eb8a509c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62fd0b510920be6bc60d170c3ff3da3.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62fd0b510920be6bc60d170c3ff3da3.png)
您最近一年使用:0次
7日内更新
|
254次组卷
|
2卷引用:贵州省都匀市民族中学2023-2024学年高二上学期期中考试数学试题
名校
解题方法
2 . 已知平面
的一个法向量为
,点
是平面
上的一点,则点
到平面
的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656e12e7079be3aa6d31ed2d89cca775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c93a2eba1d970ee13e30f5bb25efa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39627ce8b3371dc9a6d50d25390c6155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
今日更新
|
77次组卷
|
8卷引用:贵州省都匀市民族中学2023-2024学年高二上学期期中考试数学试题
3 . 如图1,在菱形
中,
,将
沿着
翻折至如图2所示的
的位置,构成三棱锥
.
(1)证明:
;
(2)若平面
平面
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c510b85dfbca0e3ab0744655d77e8c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ecc884f5b4dc9622e90e1303bc481f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/eb2147df-527b-42a2-9052-89f331badeb1.png?resizew=301)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d0f0cd1f94cea4aec68e4d830bed54.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803fa75db3ac3a26a41e347dc4165026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
您最近一年使用:0次
2023-12-15更新
|
183次组卷
|
2卷引用:贵州省2023-2024学年高二上学期11月期中联考数学试题
解题方法
4 . 在正方体
中,
分别是棱
和
上异于端点的动点,将经过三点
的平面被正方体截得的图形记为
.如图中
时截面图形
为矩形.
(1)在图中作出截面图形
为梯形的情形;(直接画出图形即可,不需说明)
(2)当点
为
中点时,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ae536809b1161fd4e83fdc7f42be96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e97fcdcfd6183b976a61ef3222c607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d04ea588f556c3b874b7e68ea69f49e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/5db5de67-b86d-4aaf-b4be-12f24a3ef879.png?resizew=164)
(1)在图中作出截面图形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
您最近一年使用:0次
5 . 已知
是直线
的方向向量,
是平面
的法向量.若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a662405af8551c5d4816885d86d93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87bf2020d0ef698c58a5ad3c700cf53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5609de21aa4528888bf0e3075fad3f9f.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
解题方法
6 . 如图,在棱长为1的正方体
中,
分别为
的中点,点
在正方体的表面上运动,且满足
.下列说法中错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329ebfb8770025d97127d51359ace297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32df475a4f2164dcecfe1bd57fa4d51e.png)
A.点![]() ![]() |
B.线段![]() ![]() |
C.点![]() |
D.点![]() ![]() |
您最近一年使用:0次
2023-11-28更新
|
634次组卷
|
3卷引用:贵州省贵阳市2023-2024学年高二上学期11月普通高中质量监测数学试卷
贵州省贵阳市2023-2024学年高二上学期11月普通高中质量监测数学试卷(已下线)模块二 专题3 利用空间向量解决立体几何中复杂问题 期末终极研习室(高二人教A版)河南省南阳市桐柏县2023-2024学年高二上学期期末质量检测数学试题
名校
解题方法
7 . 若两异面直线
与
的方向向量分别是
,
,则异面直线
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11e5eeaffd36542e8d193f4d9cf03db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ed148613805415390201c64836561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-19更新
|
299次组卷
|
4卷引用:贵州省威宁彝族回族苗族自治县第八中学2023-2024学年高二上学期期中考试数学试题
8 . 埃及金字塔是世界古代建筑奇迹之一,它的形状可视为一个正四棱锥,若金字塔
的高为3,
,点E满足
,则点D到平面
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6834ac70927ae08d7d36a1922403c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22260c83e31e5e3b49e534b5f82818d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/16/020b4bac-f702-4643-bcf1-7938857353d9.png?resizew=310)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-15更新
|
933次组卷
|
6卷引用:贵州省2023-2024学年高二上学期11月期中联考数学试题
贵州省2023-2024学年高二上学期11月期中联考数学试题辽宁省抚顺市六校2023-2024学年高二上学期期中考试数学试题四川省眉山市彭山区第一中学2023-2024学年高二上学期12月月考数学试题福建省厦门集美中学2023-2024学年高二上学期12月月考数学试卷(已下线)考点11 空间距离 2024届高考数学考点总动员 【讲】(已下线)第三篇 努力 “争取”考点 专题6 空间角与距离【练】
解题方法
9 . 如图,正方体
的棱长为
,
是
的中点,点
满足
,其中
,
,则下列结论正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/c9c653a4-4190-4817-a378-c689e4127eb4.png?resizew=176)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3326f83861572391d3e78234573ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e2e01346f60857ff635bb766802e57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/c9c653a4-4190-4817-a378-c689e4127eb4.png?resizew=176)
A.当![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-11-15更新
|
334次组卷
|
3卷引用:贵州省2023-2024学年高二上学期11月期中联考数学试题
贵州省2023-2024学年高二上学期11月期中联考数学试题辽宁省抚顺市六校2023-2024学年高二上学期期中考试数学试题(已下线)期末测试卷04(测试范围:第1-5章)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)
10 . 如图,四棱锥
中.底面
为矩形,
平面
,M,N分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/16b4597e-42ed-4800-861d-b1fa4a78f86d.png?resizew=165)
(1)若点E是线段
的中点.证明:
平面
;
(2)设
,
,
,线段
上是否存在点E,使得
与平面
所成角
的正弦值为
.
![](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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/16b4597e-42ed-4800-861d-b1fa4a78f86d.png?resizew=165)
(1)若点E是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98823cbc09ca52df1fbcc446eba3e44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
您最近一年使用:0次