名校
1 . 如图,在三棱柱
中,平面
平面
,
是矩形,已知
,动点
在棱
上,点
在棱
上,且
.
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992791164887040/2994949584961536/STEM/195645b5-92dc-4a89-838d-761dea0250e4.png?resizew=159)
(1)求证:
;
(2)若直线
与平面
所成角的正弦值为
,求
的值;
(3)在满足(2)的条件下,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0894e228b6a0085aa3a161b384c63d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0894e228b6a0085aa3a161b384c63d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4f79d90115f6895d086b59df731a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](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/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ce78060fece67bbb0a387d06757f51.png)
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992791164887040/2994949584961536/STEM/195645b5-92dc-4a89-838d-761dea0250e4.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706208480fe1cd60cb1d93f27b51accc.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec353880a1e680a37ecce3b6fb4896f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c69fdada19df0d47e392ef3c729481.png)
(3)在满足(2)的条件下,求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec353880a1e680a37ecce3b6fb4896f3.png)
您最近一年使用:0次
2022-06-05更新
|
990次组卷
|
3卷引用:北京市第五中学2022届高三下学期三模数学试题
2 . 如图,在三棱锥
中,平面
平面
,
,O为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/f286d8c8-7f2c-43ea-bcd3-2a27f3b22270.jpg?resizew=209)
(1)证明:
;
(2)若
是边长为1的等边三角形,点E在棱
上,
,且三棱锥
的体积为
,求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/f286d8c8-7f2c-43ea-bcd3-2a27f3b22270.jpg?resizew=209)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01898d4ad9757e07bddd6c26e59d1f9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d76c5ac5c9f0a2ec064487c02c476e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a8b76e36783a69d14ec54af82c7df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324d453870b345da0c41977290192f94.png)
您最近一年使用:0次
名校
3 . 如图,在四棱锥
中,底面ABCD是边长为2的正方形,△PAB为正三角形,且侧面PAB⊥底面ABCD,M为PD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/21/be9b5ca0-6d2f-4f71-9571-d322bae0606b.png?resizew=217)
(1)求证:PB
平面ACM;
(2)求直线BM与平面PAD所成角的正弦值;
(3)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/21/be9b5ca0-6d2f-4f71-9571-d322bae0606b.png?resizew=217)
(1)求证:PB
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
(2)求直线BM与平面PAD所成角的正弦值;
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02535e1a690ca111ca7a395a1bf48080.png)
您最近一年使用:0次
名校
解题方法
4 . 如图,三棱柱
中,面
面
,
.过
的平面交线段
于点
(不与端点重合),交线段
于点
.
为平行四边形;
(2)若
到平面
的距离为
,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/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425dbda940137a78a109969e66665487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70d708336d4f15e7fca0b26acb353b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bbb740f8bc13b4be8ca4dc0aef5442.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27039783266a69df2a96ea0c36cbdcd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27039783266a69df2a96ea0c36cbdcd5.png)
您最近一年使用:0次
2022-05-30更新
|
1452次组卷
|
7卷引用:中国人民大学附属中学2022届高三5月适应性练习数学试题
名校
5 . 如图1,在平面四边形
中,
∥
,
,将
沿
翻折到
的位置,使得平面
⊥平面
,如图2所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/79c91260-0750-4710-adea-510cf7121b90.png?resizew=324)
(1)设平面
与平面
的交线为
,求证:
;
(2)在线段
上是否存在一点
(点
不与端点重合),使得二面角
的余弦值为
,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96e070966ddc1d779fcfae475715936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd8bf6b4c15f19b78f979716b3d4f0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e49817548cb45b3d1e58570644c6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/79c91260-0750-4710-adea-510cf7121b90.png?resizew=324)
(1)设平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5da631296d53a08d56fb5f9bec2376c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa145a3e4f18f784ddf4869e0bf904c5.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b4e098c6194f55462b24f552f5967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f1145c162038df3c7184d9201c628e.png)
您最近一年使用:0次
2023-02-11更新
|
1115次组卷
|
7卷引用:北京市石景山区2022届高三一模数学试题
北京市石景山区2022届高三一模数学试题北京市昌平区第二中学2022-2023学年高二上学期10月月考数学试题(已下线)必刷卷02-2022年高考数学考前信息必刷卷(新高考地区专用)北京卷专题20空间向量与立体几何(解答题)重庆市2023届高三下学期开学摸底数学试题云南省昆明市第一中学2022-2023学年高二下学期期中考试数学试题(已下线)第09讲 拓展三:二面角的传统法与向量法(含探索性问题,7类热点题型讲练)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)
名校
6 . 如图,矩形
和梯形
,
, 平面
平面
,且
,过
的平面交平面
于
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/f0e0e83f-f0a4-4206-919f-913bebd6f026.png?resizew=177)
(1)求证:
与
相交;
(2)当
为
中点时,求点
到平面
的距离:
(3)若平面
与平面
的夹角的余弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7db45643a42a261d58214e6accbe8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c674dc5024374f53920947c4cf4baf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62baf83ce124ffefb6c4cac49c29af16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/f0e0e83f-f0a4-4206-919f-913bebd6f026.png?resizew=177)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe38c885f29722c433022c4b2ae6211.png)
(3)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe38c885f29722c433022c4b2ae6211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd8a98e03f6bb5601c91e72e9102e44.png)
您最近一年使用:0次
22-23高三上·北京·开学考试
名校
解题方法
7 . 如图,在直三棱柱
中,
,
,
是
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/12/0f96f3d5-6d70-4b78-a02e-0b5e3729f589.png?resizew=128)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
平面
;
(2)若棱
上存在一点
,满足
,求
的长;
(3)求平面
与平面
所成锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e9ec412ea0355e4e5cd06c60e5fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90e17995e2f71e297d94ae51c7e5b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/12/0f96f3d5-6d70-4b78-a02e-0b5e3729f589.png?resizew=128)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
(2)若棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c904f240a519d7e1dbd6bb69ae4655a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
您最近一年使用:0次
2022-09-11更新
|
1701次组卷
|
4卷引用:北京市第四中学2023届高三上学期开学测试数学试题
(已下线)北京市第四中学2023届高三上学期开学测试数学试题辽宁省沈阳市第八十三中学2022-2023学年高二上学期开学考试数学试题河南省信阳市潢川高级中学2023-2024学年高二上学期第二次月考数学试题(已下线)第一章 空间向量与立体几何(压轴必刷30题4种题型专项训练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
8 . 如图,在长方体
中,底面
是边长为2的正方形,
,E,F分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/6cab89c2-fd72-44c1-a5e0-d64293b834c0.png?resizew=156)
(1)求证:
∥平面
;
(2)设H在棱
上,且
,N为
的中点,求证:
平面
;并求直线
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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4893fbcb191420e06a239e63493626f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cab95678b6f65bc7d15f8f609352c9c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/6cab89c2-fd72-44c1-a5e0-d64293b834c0.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7850e88507969a07a9515347b97c7b6e.png)
(2)设H在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34648df9ac785a84ec3f01b005aed5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247157c37eb7c3ae9ac5aa7efb69c3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7850e88507969a07a9515347b97c7b6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7850e88507969a07a9515347b97c7b6e.png)
您最近一年使用:0次
2022-05-17更新
|
888次组卷
|
3卷引用:北京市朝阳区2022届高三二模数学试题
名校
9 . 如图,在三棱柱
中,侧面
,
都是正方形,∠ABC为直角,
,M,N分别为
,AC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/12/33d8c2e5-aa47-464c-968e-e52e881d1873.png?resizew=139)
(1)求证:
平面
;
(2)求直线AB与平面AMN所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.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/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/12/33d8c2e5-aa47-464c-968e-e52e881d1873.png?resizew=139)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eaa5e336f830a3e5cd60ff7a756f3ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)求直线AB与平面AMN所成角的正弦值.
您最近一年使用:0次
2022-09-11更新
|
745次组卷
|
4卷引用:北京市2023届高三上学期入学定位考试数学试题
名校
解题方法
10 . 如图,在四棱锥
中,
平面
,底面
是梯形,点E在
上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/c75d269d-1e62-449f-a3b7-7e21abe3e9ca.png?resizew=214)
(1)求证:平面
平面
;
(2)求直线
与平面
所成的角的正弦值.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66df9393f8c47ce408a808e3481cc043.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/c75d269d-1e62-449f-a3b7-7e21abe3e9ca.png?resizew=214)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac48b9ac8efbf41d6ab5242d247bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2022-06-12更新
|
598次组卷
|
4卷引用:北京第十二中学2021-2022学年高二6月份阶段性测试数学试题
北京第十二中学2021-2022学年高二6月份阶段性测试数学试题北京市第十二中学2021-2022学年高二6月份阶段性练习数学试题(已下线)1.2.3 直线与平面的夹角(已下线)第07讲 空间向量的应用 (2)