名校
1 . 如图,在四棱锥
中,底面ABCD是矩形,
底面ABCD,且
,E是PC的中点,平面ABE与线段PD交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/b0e2a027-ef50-4abb-a340-71566cdcccea.png?resizew=166)
(1)证明:F为PD的中点;
(2)再从条件①、条件②这两个条件中选择一个作为已知,求直线BE与平面PAD所成角的正弦值.
条件①:三角形BCF的面积为
;
条件②:三棱锥
的体积为1.
注:如果选择条件①和条件②分别解答,按第一个解答计分.
![](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/3b610c9b9948d88eda8de0fb8d1cf972.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/b0e2a027-ef50-4abb-a340-71566cdcccea.png?resizew=166)
(1)证明:F为PD的中点;
(2)再从条件①、条件②这两个条件中选择一个作为已知,求直线BE与平面PAD所成角的正弦值.
条件①:三角形BCF的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4056761b8f826eeb6ad8c9a151d3c9c.png)
条件②:三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596ce49d6e81550d75734fe89b0fa495.png)
注:如果选择条件①和条件②分别解答,按第一个解答计分.
您最近一年使用:0次
2023-05-05更新
|
1421次组卷
|
5卷引用:北京市朝阳区2023届高三二模数学试题
2 . 如图所示,过原点O作两条互相垂直的线OA,OB分别交抛物线
于A,B两点,连接AB,交y轴于点P.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/e8f02597-2cc6-4180-9c64-2c490bc45fc3.png?resizew=158)
(1)求点P的坐标;
(2)证明:存在相异于点P的定点T,使得
恒成立,请求出点T的坐标,并求出
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f4123c19136d3a4dc040dce8e34e14.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/e8f02597-2cc6-4180-9c64-2c490bc45fc3.png?resizew=158)
(1)求点P的坐标;
(2)证明:存在相异于点P的定点T,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a725613972cca1d387bbfb6d3426f1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04e30d5827f2120d997997e4e31ba17.png)
您最近一年使用:0次
2023-02-22更新
|
782次组卷
|
2卷引用:北京市清华大学THUSSAT2023届高三上学期12月诊断性测试数学(理)试题
名校
3 . 如图,在直三棱柱
中,
,D是棱
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/4fc19a80-bd69-49f7-bf56-58fe950a63a2.png?resizew=153)
(1)求证:
;
(2)求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512cc5f78111d4592f6d843db6915f4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd25759a3bb1f1283f93e7f2b1c5774.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/4fc19a80-bd69-49f7-bf56-58fe950a63a2.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896d66e2af642634094aec5187f29a21.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e0254c84e44728749b34c08c28ab1e.png)
您最近一年使用:0次
2023-04-19更新
|
162次组卷
|
18卷引用:2020届北京市密云区高三第二学期第二次阶段性测试数学试题
2020届北京市密云区高三第二学期第二次阶段性测试数学试题北京市第十五中学2022届高三上学期期中考试数学试题北京市海淀区首都师范大学附属中学2022届高三下学期三模练习数学试题2015-2016学年河北冀州中学高一下首次月考理科数学卷天津市南开中学2017届高三第五次月考数学(文)试题吉林省吉化第一高级中学校2020-2021学年高二11月月考数学(理)试题云南省保山市第九中学2019-2020学年高二下学期期中考试数学(理)试题陕西省西安市重点高中2021-2022学年高三上学期第一次考试理科数学试题江苏省扬州市公道中学2020-2021学年高二下学期第二次学情测试数学试题甘肃省天水市第一中学2021-2022学年高三上学期第一次考试 数学(理科)试题云南省弥勒市第一中学2021-2022学年高二上学期第二次月考数学试题福建省厦门集美中学2022届高三12月月考数学试题黑龙江省双鸭山市第一中学2021-2022学年高二上学期期末数学试题甘肃省武威市凉州区2021-2022学年高二下学期期末考试数学(理)试题陕西省安康市白河高级中学实验班2021-2022学年高二上学期期末理科数学试题(已下线)专题24 空间向量与空间角的计算-十年(2011-2020)高考真题数学分项(已下线)专题11 空间角的计算(重点突围)(2)(已下线)第七章 应用空间向量解立体几何问题拓展 专题二 平面法向量求法及其应用 微点1 平面法向量求法及其应用(一)【培优版】
4 . 如图,四棱锥
中,底面
是梯形,
,
面
,
是等腰三角形,
,
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/16/5ecbc7a1-9f89-4cee-82e4-94808d144677.png?resizew=187)
(1)求证:
;
(2)设
与
所成的角为
,直线
与平面
所成的角为
,二面角
为
,从以下所给的三个条件中选出其中一个作为已知条件,求四棱锥
的体积.
①
; ②
; ③
.
![](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/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4d19bf237a6fca67e0d01a9ddb726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee90881c743e2cff2e3128d6bdb86174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/16/5ecbc7a1-9f89-4cee-82e4-94808d144677.png?resizew=187)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9829fc6685b59fdc609f32f30ebd9e6d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f64fa38725c136504f723019a18dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93fa313adc4ac7608ba9449fd755212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b796bbaeb8450404c2d146283562006e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8d4017e1a37acb0c8e00508be472b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3fe9cff5ecb699469ed2c4bbb9b584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a065865e26095d6bf74c4959dc1fef4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d058392f42ed517529d4d243937837.png)
您最近一年使用:0次
2023-04-14更新
|
1055次组卷
|
3卷引用:北京市延庆区2023届高三一模数学试题
解题方法
5 . 四棱锥
,底面
是边长为2的正方形,
,
.
.
为
中点,
为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/5/2bb4ef0a-3f70-48de-9b24-5cd2747efece.png?resizew=194)
(1)证明:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9efe66d99f813c6b1387392186822bb.png)
(2)求二面角
的余弦值
(3)若某几何体的面数为
,顶点个数为
,棱个数为
,试给出
的关系式(直接写出结论)
![](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/00bab2c27eac56fffa4cd7dbe1dcdf1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df49b91d399a0b28d5ad86b84b1f42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db27b7f29d7d01b2692f217bc3079fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/5/2bb4ef0a-3f70-48de-9b24-5cd2747efece.png?resizew=194)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9efe66d99f813c6b1387392186822bb.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c03c20ae8d1866fe55f045e946800d.png)
(3)若某几何体的面数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
您最近一年使用:0次
名校
解题方法
6 . 如图,在四棱锥
中,
平面
,
,
,
,
.
为
的中点,点
在
上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/2/3f9033bc-2e28-4dd8-ac0b-54058e78d004.png?resizew=144)
(1)求证:平面
平面
;
(2)求平面
与平面
所成角的余弦值;
(3)若棱
上一点
,满足
,求点
到平面
的距离.
![](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/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a923784f083b7f4777891afe06b44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e253397d209d74dd1c1f2a38f52738ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/2/3f9033bc-2e28-4dd8-ac0b-54058e78d004.png?resizew=144)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501f1c913a4ef64957a2f01ab5baa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb8697622fb9d281cf44feb4adaf14a.png)
(3)若棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbacc720190394671ab0b39a1bc77811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
您最近一年使用:0次
2023-06-01更新
|
1624次组卷
|
3卷引用:北京市丰台区第二中学2023届高三三模数学试题
7 . 如图,在四棱锥
中,
,
,
底面
,
为棱
上的点,
,
.
(1)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
平面
,求证:点
为
的中点;
(2)再从条件①、条件②这两个条件中选择一个作为已知,求平面
与平面
夹角的余弦值.
条件①:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
条件②:直线
与
夹角的余弦值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
注:如果选择条件①和条件②分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eaa1a14893960a7032a20c06de41ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/2/3a0f9733-58b0-4f0e-a06d-a84bb6ce0ddc.png?resizew=140)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)再从条件①、条件②这两个条件中选择一个作为已知,求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfaad4c4467e27421876d8f2a4371d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
条件②:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
注:如果选择条件①和条件②分别解答,按第一个解答计分.
您最近一年使用:0次
名校
8 . 如图,在长方体
中,四边形
是边长为1的正方形,
,
,
,
分别是
,
,
的中点
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/26/43b7683d-9cbd-4244-9050-fd5e652a7720.png?resizew=180)
(1)求证:
平面
;
(2)求直线
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/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/26/43b7683d-9cbd-4244-9050-fd5e652a7720.png?resizew=180)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ac3b99e8593e14955dcb2a0f2fe6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8948ac8156d19336083987d47b0f7038.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fefd8229243bcbee5ac197740e6c66ab.png)
您最近一年使用:0次
2023-03-25更新
|
362次组卷
|
6卷引用:北京市东城区2021届高三一模数学试题
解题方法
9 . 如图,四棱锥
的底面是矩形,
底面ABCD,
,M为BC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/726658cd-4094-4fc6-bc8d-4ea871c3cc1f.png?resizew=153)
(1)求证:
平面PBD;
(2)求平面ABCD与平面APM所成角的余弦值;
(3)求D到平面APM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/35883d6dd1d3d1454275b3b9574090ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/726658cd-4094-4fc6-bc8d-4ea871c3cc1f.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0edb1508fc95765f3bb316bcb5252d.png)
(2)求平面ABCD与平面APM所成角的余弦值;
(3)求D到平面APM的距离.
您最近一年使用:0次
解题方法
10 . 如图,在三棱柱ABC—A1B1C1中,四边形A1ACC1是边长为4的正方形,
,点D为BB1中点.再从条件①、条件②、条件③中选择两个能解决下面问题的条件作为已知,并作答.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/c9f0746a-4ebe-4a95-9dfb-9d4e3f2170c1.png?resizew=154)
(1)求证:AB⊥平面A1ACC1;
(2)求直线BB1与平面A1CD所成角的正弦值;
(3)求点B到平面A1CD的距离.
条件①:
; 条件②:
; 条件③:平面ABC⊥平面A1ACC1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/c9f0746a-4ebe-4a95-9dfb-9d4e3f2170c1.png?resizew=154)
(1)求证:AB⊥平面A1ACC1;
(2)求直线BB1与平面A1CD所成角的正弦值;
(3)求点B到平面A1CD的距离.
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d399572bdc5816897500121034d1100c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
您最近一年使用:0次
2023-03-27更新
|
989次组卷
|
3卷引用:北京市海淀区教师进修学校附属实验学校2023届高三零模数学试题